The change in sound at the grounding of the emitters is due to the disabling of the feedback EQ circuit. The 2 transistor RIAA preamp used in dozens of seventies receivers is similar to this. The two parallel R/C networks make up the feedback circuit. They provide more feedback at higher frequencies to give the overall boost bass, cut treble curve for the preamp. When you grounded the emitters, you removed the feedback influence, flattening the response of the amp. Also without feedback, the distortion in the amp was raised and was audible. As an aside, a particular Advent stereo receiver was known for its great sounding phono section. Designed by Tomlinson Holman (THX) he added an emitter follower so the second stage didn't get loaded down by the EQ network. The use of a follower as a buffer to easier drive the EQ network was also a practice used by Marantz in their model 7 preamp, also a great sounding phono preamp. Eico had a different approach, using a 2 stage circuit, but a 40KΩ plate load instead of the usual 100KΩ seen there. Another decent sounding circuit.
Haven't worked on one of those in over 40 years. You've got your own troubleshooting techniques that I wish I knew way back. Thanks for the excellent video.
Incredible build quality!!! I love metal chassis stuff like this... the pinnacle of electronics. Only the (replaceable) soft rubber parts failed. A bomb could go off, and this tape recorder would survive unscathed.
I had one of those F400 tape decks years ago. The rewind and fast forward keys do not latch by design, the ARC is for the automatic record (level) control and yes the lower meter doubles as a battery condition meter in the playback mode. It was a kind of okay unit, never sounded all that good and I hated the lack of locking ff/rew keys and no auto stop at the end of play. BTW - check that you put the mechanical “finger” for the record slide switch back together properly, if the finger isn’t sitting in the notch for the slider switch on the circuit board the record key will hang up.
I knew I recognized the style of that model number label. I have two Panasonic cassette recorders, one from 1973, one from 1976, two radio cassettes from 1981 and 1982, and currently I'm recapping a 1984 Panasonic portable VCR. Great stuff, but sometimes the caps aren't great.
@@OlegKostoglatov Great timing. I just recapped my '73 tape player and my '82 radio and most caps were Matsushita, and I encountered a few bad ones. But the portable VCR that I mentioned is being particularly troublesome, and it has a good chunk of Elna caps.
Regarding the erasing, I’m thinking the slide switch under the board that is activated by the record button is not lined up right with the lever. Check the groove alignment.
That’s a very nice cassette recorder by Concord. I only have a reel-to-reel tape recorder which is a 220T and it’s a hybrid tube and solid state amp in one where it says “Transistorized”, and mine is from about 1964 or 1965, and it works great, and it’s a 2-track mono tape recorder, but there’s no stereo on there. If I put a 4-track stereo reel tape in my Concord 220, it plays backwards mixing with forward.
I used to repair old Hi-Fi stuff in the 90's I have a box full of new old stock pinch rollers if you get stuck maybe i could mail you some these are an interesting red rubber type.
I owned one of these in the 60s. It was a really nice cassette deck at the time. Good as car stereo or plug into your home system when you got home. It made really great recordings by standards of the time.
I also own two of these (one actually still in its original box with all the paperwork and accessories) and counting one my father owned, I have had three over the years. This deck was produced from 1967 through 1971 and was one of the first stereo portables. Rewind and fast forward do not interlock on this deck as this is an early design, it also does not auto-stop. The pinch rollers on these decks were a problem from new as the rubber is not the correct composition and will cause mistracking and eating of some types of cassettes. It gets worse with age and will also get worse as oxide build up forms on the roller. As yours seems to be dry rotting, your will never get steady speed with it in that condition. The record button is actually not stuck. You recorded on a tape that does not have the tabs in it anymore and got around it by pushing record in advance which works, but there is a procedure for getting it out of record. First you need to eject the tape, then press the write protect actuator in the bottom right of the tape area. If you push that with the record button in the half way point as it is now, the record button should pop back into the standard position. You can also fix this by just inserting a tape with the record tabs still in it. They all do this, not sure why, although it makes it handy when using the amp and speakers as a public address system. I don't believe this is mentioned in the original owners manual, however this may have been a feature mentioned in the Japanese version of the deck's literature. By the way, ARC is automatic recording control, which by passes the level controls, although it will only record in ARC in monaural (though both channels). There are parts still available for this, however it is doubtful you are going to find much if you look under Concord F-400 as that was just a bit of US badge engineering as these were actually also sold as Penncrest (with awful olive green vinyl) through JCPenney around the same time. You will have better luck finding it under the OEM model which is National RS-255S (as in National Panasonic). I'll have to double check, but I am pretty sure I have the schematic for this with the literature included with the boxed deck I have as it has all of its documentation and back in those days it was standard for equipment to come included with a schematic. If you are interested, I can scan it and email you a PDF of it. Originally this deck came with a microphone, some RCA cables and a cassette, a C-60 in the earlier models, later ones a C-30. My boxed one is from around 1971 as it has a C-30 cassette, although a C-60 is still mentioned in the manual (my fathers had the C-60 cassette). Performance wise, keep in mind this deck did come out in 1967, so it is not going to perform like a more modern deck. In fact by the mid-70's it was pretty outdated with the lack of Dolby and no provisions for high bias tape (as there was no such thing when this deck came out). That said, it does sound pretty good and with the way the speakers fire out the side, it offers better stereo separation than one would think and the case is an acoustic enclosure, so it sounds marginally better with the tape door closed than open. One other thing, it does not have a true monitoring circuit, so whatever level you have it set, that is also your monitoring volume, so it can be loud when monitoring through the speakers. I suggest recording with it hooked to a receiver like a home tape deck, or monitor using headphones with a volume control. It is well built, but also very primitive. It's a cool piece of history though and well worth fixing both of them.
When I hired on to the police department in my home town, after returning from Vietnam, the city council, in it's ultimate control and wisdom, ordered that any new police car purchased after 1969 would be purchased with no AM/FM radio installed. They did not want officers listening to the radio when they should be paroling and paying attention to the police radio! Well it wasn't long before someone (me) installed a small portable cassette player under the front seat. That didn't last long, it got the shit kicked out of it, and a few weeks later one just about like that appeared on the back of the front seat, strapped to the cage that prevented the bad guys from getting at we good guys in the front seat. That lasted for over 3 years, but by the end, it looked very sad indeed, and the City Dad's seeing the idiocy of their ways (A police officer being elected to the board helped a LOT) relented and the cars were once again purchased with radios installed. Thus went the way of the portable Cassette players in the squad cars.
I seem to remember this brand of electronic brand products sold in the mid 60s to early 70s by a discount department store chain on the east coast. It's either 2 Guys, EJ Korvetts, or S Klines. All of these stores are out of businesses but they were big and reputable in their days. They were a kind of a store where a kid can save up a few weeks of profits from delivering newspapers to their customers houses and then go and buy a pocket radio.
Thanks for the diagram. I thought that's what you were saying and talking about but I'd never seen that done before grounding a cap to the chassis to test the legs. The mechanics on those old cassette machines are a little tricky sometimes; one wrong move to the left or right and they just don't work until you put them back exactly with a little grease.
concorde was the r-r tape recorder w 7 in reels our school had in the AV dept for student music and arts classes,it was portable,w line out to feed the amplifier in classrooms,it was an excellent machine
Great units and video. Cleaning the heads, pinch roller and capstan shaft, and demagnetising the head - considerably helps tonal qualities. Particularly the 'high' frequencies, assuming the heads aren't worn that is?
I wonder if you could 3D print one? Guess u could, and that's what I would try, if I wanted to completely restore them. OTOH, and personally, I'd convert them to guitar-practice amps.
You're probably aware of David Tipton's RUclips channel but if not, there's a video you'd get a kick out of where he restores a dollar radio. I know you aren't into restorations but this guy has mad skills.
My dad had one new, in 1972, so it's late 60's - very early 70s and worked well. I wish I still had it, locating examples this clean is hard and can be expensive on that Epay rip-off place. I can get the belts and capstan roller for them, or the capstan roller re-rubbered for 50$, any size. If there is an idler in the transport that tire is available as well. The one dad had sounded really good stand alone or plugged into the stereo to record and play. The meters work in record only. The meter is for power, 120vac and battery level, which drops as the D-cell battery's discharge. I cannot remember if these have a rechargeable circuit or not. Sounds like the long 'Slide Switch is dirty. Very common on cassette decks.. I have the parts in stock and can rebuild both of them, including a complete transport service as well as electronic calibration for record and play, to make it record much better when using improved bias curves used newer tapes from the 80's and 90's
Concord was a distributor of good quality Japanese-made (mostly Matsushita) consumer grade audio stuff. I have a few of their reel-to-reel machines from the mid-sixties. They all work well and sound good to this day. Heavy, well-designed. Many of the parts are Panasonic compatible, so are easily obtainable.
I would guess that these were rebadged Matshushita/National/Panasonic machines given the markings on so many of the components, that may help in tracking down a schematic. As for the pinch roller maybe a trip to a place that sells rubber hoses or tubing such as an auto parts store?
zx8401ztv I am wondering if someone had invented a word yet for when you find one of your subscribers commenting on someone else’s video LOL. Everyone watches Shangoo just spotted Simon Spiers . Like meeting someone you know when your on holiday. Regards Chris.
Looks to be a National/ Panasonic OEM of some sort. It's funny how the bad germanium made it sound like a misbehaving radio, instead! Very robust build quality; reminded me a little of the quality ITT and Grundig equipment we had growing up..and which also took on the proverbial 'built like a brick shitter' approach!
I found out myself around 1990 that Concord appeared to be Panasonic under another name (to my great surprise). Why they'd do that is hard to figure. They weren't trying to go upscale....I don't think. That was what the Technics brand name was for. And nobody tries to go downscale. So what WERE they trying to do? Sound more American?
@@dmj-ju9zx Yes, you've pretty much answered your own question! There was still a lot of residual distrust of the Japanese post-WWII. Most Western markets naturally wanted to protect their own respective jobs and industries from what was then seen as cheap imports. I also recall Panasonic later dropped 'National' as it sounded too..what's the word..nationalistic!
Did you try cleaning the record/play switch? 90% of the time that cures the no audio/noise in play. First thing I do when old gear hits the bench. These old units did not have cue/revue.
About a year ago I went around the factory where I worked and sang that old rockabilly song "I Got A Rocket In My Pocket" to some of the ladies. Not only did I get a copyright strike, I got served with more than a few restraining orders.
Got my first stereo from University Stereo,in LA,it was the very first.In a guys house ,in the garage.Hahaha.It was a Concord.University went on to becoming something like a Best Buy !!!Then some scam ,and they went broke.Their commercials use to be on local LA,TV.👍📻📺
@@simonmorris3964 You are both right. Concord was rebranded Matsushita from before they changed their name from National to Panasonic. Concord stayed with them until the early-mid 70s when the marketing of such gear was overwhelmed by Sony and Panasonic directly selling to the public.
@@Rfk1966 Meters were supplied to the Japanese mfrs by only a couple of makers, often camera companies. You really can't tell much just from the meters. 90% of the small cassette recorders used the exact same meters back then. Concord WAS supplied by Panasonic back then.
That sounded like Herbert Armstrong of the Worldwide Church of God, a very well known radio preacher from the mid 20th century, HQ in Pasadena CA AKA Ambassador College.
There are numerous ways to determine this, but we do know it's an audio amp, so anything that can amplify in that range that is PNP germanium will probably work. As long as the beta/HFe isn't too high, you'll be good -- well, usually :D.
I remember watching Clydesight, and he had a web site called the Tape recorder museum. There was some neat stuff there. The OTHER content on his website wasn't my style.
Automatic Record Control? Sometimes a dirty record switch can cause issues. Edit: I see you checked that. I premature-commentated. Great job!!! As always.
As an electronics engineer, I would have NOT placed those speakers 180* out of phase, but instead placed audio deflector fold out panels that would direct the sound forward, or upward. But that is just me.
I enjoyed watching this. I like to watch until the end before commenting so as not to make a suggestion that is wrong. I do wonder how the meters work as the function seems counter intutative I would have expect on play to be sound level. Record as record level and a push button for battery state.
Patience of a Saint with that Old Crap .. don’t get me wrong, I Love Magnetic Tape,.. (for Recording purposes..) but as “well-built” as those two things were for the time, They’re Obsolete on So Many Levels..
arc automatic record control possibly one of two things first it could be ONE OF THOSE DEALS WHERE IF IT SENSES NOISE IT WILL START TO RECORD OR? IT'S SOME AUTO VOLUME THING..
bet it is I see the small black squire that would be the "Panasonic N" logo and the font looks just like Panasonic like this one ruclips.net/video/6lQ8JcArYaY/видео.html
I love your vids,nice and frank,with some whit and repair mixed in.superb.
The change in sound at the grounding of the emitters is due to the disabling of the feedback EQ circuit. The 2 transistor RIAA preamp used in dozens of seventies receivers is similar to this. The two parallel R/C networks make up the feedback circuit. They provide more feedback at higher frequencies to give the overall boost bass, cut treble curve for the preamp. When you grounded the emitters, you removed the feedback influence, flattening the response of the amp. Also without feedback, the distortion in the amp was raised and was audible.
As an aside, a particular Advent stereo receiver was known for its great sounding phono section. Designed by Tomlinson Holman (THX) he added an emitter follower so the second stage didn't get loaded down by the EQ network. The use of a follower as a buffer to easier drive the EQ network was also a practice used by Marantz in their model 7 preamp, also a great sounding phono preamp. Eico had a different approach, using a 2 stage circuit, but a 40KΩ plate load instead of the usual 100KΩ seen there. Another decent sounding circuit.
I'm seriously impressed by how well it performed even with that ratty pinch roller!
Haven't worked on one of those in over 40 years. You've got your own troubleshooting techniques that I wish I knew way back. Thanks for the excellent video.
Incredible build quality!!! I love metal chassis stuff like this... the pinnacle of electronics. Only the (replaceable) soft rubber parts failed.
A bomb could go off, and this tape recorder would survive unscathed.
I had one of those F400 tape decks years ago. The rewind and fast forward keys do not latch by design, the ARC is for the automatic record (level) control and yes the lower meter doubles as a battery condition meter in the playback mode. It was a kind of okay unit, never sounded all that good and I hated the lack of locking ff/rew keys and no auto stop at the end of play. BTW - check that you put the mechanical “finger” for the record slide switch back together properly, if the finger isn’t sitting in the notch for the slider switch on the circuit board the record key will hang up.
The headache & fun of repairing cassette players! Ooh my specialty at its finest. 😂❤️
Very nice units. Love the build quality. Hope you can get one or both restored!
gary at the voice of music can find new pinch rollers those are nice and well worth restoring
ARC = Aut Record Control
And you got the belt right !
Loved the capacitor trick , thanks mr Shango 066
You find good equipment to work on,here in VA. i find expensive junk at Goodwill.I enjoy all your videos.
Nothing gets me thro a Monday better than a shango video 😝
Panasonic, matsushita made these, that's why they are like a tank
That's what I thought, since every capacitor and transistor is Matsushita-branded.
It looks like it shares a lot of parts with my Sony TC-560D RTR
I knew I recognized the style of that model number label. I have two Panasonic cassette recorders, one from 1973, one from 1976, two radio cassettes from 1981 and 1982, and currently I'm recapping a 1984 Panasonic portable VCR. Great stuff, but sometimes the caps aren't great.
Except that those probably had Elna brand capacitors in them, which were probably the worst among the Japanese cap brands.
@@OlegKostoglatov Great timing. I just recapped my '73 tape player and my '82 radio and most caps were Matsushita, and I encountered a few bad ones. But the portable VCR that I mentioned is being particularly troublesome, and it has a good chunk of Elna caps.
Thank God you have a new video out I've watched so much damn RUclips over the last couple of days it's nice to have a new video from you
I really want to hear the entire sermon from 45 years ago now.
Regarding the erasing, I’m thinking the slide switch under the board that is activated by the record button is not lined up right with the lever. Check the groove alignment.
That gospel preacher sounds better with the record button stuck down. He needs a re-cap!
That’s a very nice cassette recorder by Concord. I only have a reel-to-reel tape recorder which is a 220T and it’s a hybrid tube and solid state amp in one where it says “Transistorized”, and mine is from about 1964 or 1965, and it works great, and it’s a 2-track mono tape recorder, but there’s no stereo on there. If I put a 4-track stereo reel tape in my Concord 220, it plays backwards mixing with forward.
I used to repair old Hi-Fi stuff in the 90's I have a box full of new old stock pinch rollers if you get stuck maybe i could mail you some these are an interesting red rubber type.
I owned one of these in the 60s. It was a really nice cassette deck at the time. Good as car stereo or plug into your home system when you got home. It made really great recordings by standards of the time.
I also own two of these (one actually still in its original box with all the paperwork and accessories) and counting one my father owned, I have had three over the years. This deck was produced from 1967 through 1971 and was one of the first stereo portables. Rewind and fast forward do not interlock on this deck as this is an early design, it also does not auto-stop. The pinch rollers on these decks were a problem from new as the rubber is not the correct composition and will cause mistracking and eating of some types of cassettes. It gets worse with age and will also get worse as oxide build up forms on the roller. As yours seems to be dry rotting, your will never get steady speed with it in that condition.
The record button is actually not stuck. You recorded on a tape that does not have the tabs in it anymore and got around it by pushing record in advance which works, but there is a procedure for getting it out of record. First you need to eject the tape, then press the write protect actuator in the bottom right of the tape area. If you push that with the record button in the half way point as it is now, the record button should pop back into the standard position. You can also fix this by just inserting a tape with the record tabs still in it. They all do this, not sure why, although it makes it handy when using the amp and speakers as a public address system. I don't believe this is mentioned in the original owners manual, however this may have been a feature mentioned in the Japanese version of the deck's literature. By the way, ARC is automatic recording control, which by passes the level controls, although it will only record in ARC in monaural (though both channels).
There are parts still available for this, however it is doubtful you are going to find much if you look under Concord F-400 as that was just a bit of US badge engineering as these were actually also sold as Penncrest (with awful olive green vinyl) through JCPenney around the same time. You will have better luck finding it under the OEM model which is National RS-255S (as in National Panasonic). I'll have to double check, but I am pretty sure I have the schematic for this with the literature included with the boxed deck I have as it has all of its documentation and back in those days it was standard for equipment to come included with a schematic. If you are interested, I can scan it and email you a PDF of it. Originally this deck came with a microphone, some RCA cables and a cassette, a C-60 in the earlier models, later ones a C-30. My boxed one is from around 1971 as it has a C-30 cassette, although a C-60 is still mentioned in the manual (my fathers had the C-60 cassette).
Performance wise, keep in mind this deck did come out in 1967, so it is not going to perform like a more modern deck. In fact by the mid-70's it was pretty outdated with the lack of Dolby and no provisions for high bias tape (as there was no such thing when this deck came out). That said, it does sound pretty good and with the way the speakers fire out the side, it offers better stereo separation than one would think and the case is an acoustic enclosure, so it sounds marginally better with the tape door closed than open. One other thing, it does not have a true monitoring circuit, so whatever level you have it set, that is also your monitoring volume, so it can be loud when monitoring through the speakers. I suggest recording with it hooked to a receiver like a home tape deck, or monitor using headphones with a volume control.
It is well built, but also very primitive. It's a cool piece of history though and well worth fixing both of them.
You are a smart guy...and its always a relief to watch your videos.Thank you!
Noisy record playback switches are a classic of cassette machines of this age/era.
Looks like amazing build quality. Funny not used a tape deck in 20 years
Thank you for explaining what you did with removing noise from the transistors.
When I hired on to the police department in my home town, after returning from Vietnam, the city council, in it's ultimate control and wisdom, ordered that any new police car purchased after 1969 would be purchased with no AM/FM radio installed. They did not want officers listening to the radio when they should be paroling and paying attention to the police radio! Well it wasn't long before someone (me) installed a small portable cassette player under the front seat. That didn't last long, it got the shit kicked out of it, and a few weeks later one just about like that appeared on the back of the front seat, strapped to the cage that prevented the bad guys from getting at we good guys in the front seat. That lasted for over 3 years, but by the end, it looked very sad indeed, and the City Dad's seeing the idiocy of their ways (A police officer being elected to the board helped a LOT) relented and the cars were once again purchased with radios installed. Thus went the way of the portable Cassette players in the squad cars.
Hey nice story. Are you retired from the cops? Tell us more about vintage police equipment.
I seem to remember this brand of electronic brand products sold in the mid 60s to early 70s by a discount department store chain on the east coast. It's either 2 Guys, EJ Korvetts, or S Klines. All of these stores are out of businesses but they were big and reputable in their days. They were a kind of a store where a kid can save up a few weeks of profits from delivering newspapers to their customers houses and then go and buy a pocket radio.
my luck is pop that clip off, and everything comes flying all over the place!! you are amazing !!! keep doin what you doin !!!
I need one of those machines a direct line to heaven
Ernst Angely sodomizes for God!
Hopefully today we'll have a crt video
Thanks for the diagram. I thought that's what you were saying and talking about but I'd never seen that done before grounding a cap to the chassis to test the legs. The mechanics on those old cassette machines are a little tricky sometimes; one wrong move to the left or right and they just don't work until you put them back exactly with a little grease.
Who else is enjoying the new magnetic tape trend on this channel?
concorde was the r-r tape recorder w 7 in reels our school had in the AV dept for student music and arts classes,it was portable,w line out to feed the amplifier in classrooms,it was an excellent machine
My first stereo was a Concord from same era. Believe this is the first Concord anything I have seen since
Great units and video. Cleaning the heads, pinch roller and capstan shaft, and demagnetising the head - considerably helps tonal qualities. Particularly the 'high' frequencies, assuming the heads aren't worn that is?
That brushed aluminium and slidey door deal screams late 60s Sony.
Nice non-vented caps for popping. Well built device.
The pinch roller ( sadly here in Europe ) can easily cost 4 time what you pay for the 2 recorders.
I wonder if you could 3D print one? Guess u could, and that's what I would try, if I wanted to completely restore them. OTOH, and personally, I'd convert them to guitar-practice amps.
Where in Europe are you? I had no problem buying various pinch rollers online here in Poland, starting at around the equivalent of $6.
@@inferi312 I'm in Bukistan.
They don’t make electronics like that no more
You're probably aware of David Tipton's RUclips channel but if not, there's a video you'd get a kick out of where he restores a dollar radio. I know you aren't into restorations but this guy has mad skills.
My dad had one new, in 1972, so it's late 60's - very early 70s and worked well. I wish I still had it, locating examples this clean is hard and can be expensive on that Epay rip-off place. I can get the belts and capstan roller for them, or the capstan roller re-rubbered for 50$, any size. If there is an idler in the transport that tire is available as well. The one dad had sounded really good stand alone or plugged into the stereo to record and play.
The meters work in record only. The meter is for power, 120vac and battery level, which drops as the D-cell battery's discharge. I cannot remember if these have a rechargeable circuit or not.
Sounds like the long 'Slide Switch is dirty. Very common on cassette decks.. I have the parts in stock and can rebuild both of them, including a complete transport service as well as electronic calibration for record and play, to make it record much better when using improved bias curves used newer tapes from the 80's and 90's
Concord was a distributor of good quality Japanese-made (mostly Matsushita) consumer grade audio stuff. I have a few of their reel-to-reel machines from the mid-sixties. They all work well and sound good to this day. Heavy, well-designed. Many of the parts are Panasonic compatible, so are easily obtainable.
I would guess that these were rebadged Matshushita/National/Panasonic machines given the markings on so many of the components, that may help in tracking down a schematic. As for the pinch roller maybe a trip to a place that sells rubber hoses or tubing such as an auto parts store?
National/Panasonic RS-255S
The good side of that unit sounds pretty decent!
is this the same concord that made car stereo ??in the 80s?
Where can I get this Sermon?
concord car audio was top notch late 70's/ 80's.
There is a certain irony in playing a video from this channel in the background while bulk recapping something...
diamond member so many uploads .now tape yes let get on to some ol reel to reel shit .love u caveman
It's likely that every transistor in the head pre amp adds some noise.
I would probe the stages with a good amplifier.
zx8401ztv I am wondering if someone had invented a word yet for when you find one of your subscribers commenting on someone else’s video LOL. Everyone watches Shangoo just spotted Simon Spiers . Like meeting someone you know when your on holiday. Regards Chris.
Looks to be a National/ Panasonic OEM of some sort. It's funny how the bad germanium made it sound like a misbehaving radio, instead!
Very robust build quality; reminded me a little of the quality ITT and Grundig equipment we had growing up..and which also took on the proverbial 'built like a brick shitter' approach!
I found out myself around 1990 that Concord appeared to be Panasonic under another name (to my
great surprise). Why they'd do that is hard to figure. They weren't trying to go upscale....I don't think. That was what
the Technics brand name was for. And nobody tries to go downscale. So what WERE they trying to do? Sound more
American?
@@dmj-ju9zx Yes, you've pretty much answered your own question! There was still a lot of residual distrust of the Japanese post-WWII.
Most Western markets naturally wanted to protect their own respective jobs and industries from what was then seen as cheap imports.
I also recall Panasonic later dropped 'National' as it sounded too..what's the word..nationalistic!
Heavy Duty Quality. Very nice.
Record button=copyright free jam
I'd rather listen to transistor hiss than mumble rap anyway :D
Dave Hebert das raycis an Sheiit. We wuz kangs
Did you try cleaning the record/play switch? 90% of the time that cures the no audio/noise in play. First thing I do when old gear hits the bench.
These old units did not have cue/revue.
About a year ago I went around the factory where I worked and sang that old rockabilly song "I Got A Rocket In My Pocket" to some of the ladies. Not only did I get a copyright strike, I got served with more than a few restraining orders.
Yea nowadays, RUclips has become pretty sh*t!
There was a mono version of this as well, but I can’t find it anywhere. With such a sliding door. Could you help me?
Nice unit there.
A sermon from 1975. My day is complete now.
Built like a Tank!
Yeah that main rec/play multi throw mode switch (often on the board driven by linkages) is something to check every time.
Got my first stereo from University Stereo,in LA,it was the very first.In a guys house ,in the garage.Hahaha.It was a Concord.University went on to becoming something like a Best Buy !!!Then some scam ,and they went broke.Their commercials use to be on local LA,TV.👍📻📺
Love the video thanks alot.
But miss you not doing crt videos
Do you by any chance work on digital alarm clocks ?
That tape machine needs to allow Jesus Christ to control its wow and flutter.
Directly or indirectly?
Looks like a re-branded Panasonic.
bill myke I thought the same thing.
@@simonmorris3964 You are both right. Concord was rebranded Matsushita from before they changed their name from National to Panasonic. Concord stayed with them until the early-mid 70s when the marketing of such gear was overwhelmed by Sony and Panasonic directly selling to the public.
Perhaps Sony as those VU meters look the same as on my tape player
@@Rfk1966 Meters were supplied to the Japanese mfrs by only a couple of makers, often camera companies. You really can't tell much just from the meters. 90% of the small cassette recorders used the exact same meters back then.
Concord WAS supplied by Panasonic back then.
@@RuneTheFirst These were also sold under the SUPERsonic brand.
How did the Delta 777 AV Gas dump work out fer ya?
I have a Panasonic 8-Track portable AM/FM stereo that splits apart into two speakers. Maybe I will clean it up and post. (1967) Takes 8 c cells.
they used to sell those tapes after service at most churches before they got there web sits
Very cool! our schools in north west england had similar units, they were made by philips
But this thing is only 51 years old. I like it better when you work on old stuff… ;-)
That sounded like Herbert Armstrong of the Worldwide Church of God, a very well known radio preacher from the mid 20th century, HQ in Pasadena CA AKA Ambassador College.
How do you know what kind of transistor to replace the bad one with?
There are numerous ways to determine this, but we do know it's an audio amp, so anything that can amplify in that range that is PNP germanium will probably work. As long as the beta/HFe isn't too high, you'll be good -- well, usually :D.
In addition there are quite a few substitution lists online,some of which even include Soviet types, so quite simple really..
ARC = auto record control or the same thing as an automatic record level
Ebonics lol, I love the way you throw one out shango :)
I did too. Hooked on ebonics.
It's looking new...
I remember watching Clydesight, and he had a web site called the Tape recorder museum. There was some neat stuff there. The OTHER content on his website wasn't my style.
Automatic Record Control? Sometimes a dirty record switch can cause issues. Edit: I see you checked that. I premature-commentated. Great job!!! As always.
ARC = Automatic Record Control? it could set the record levels automatically?
I think it's auto return channel.
This way you can listen to tv stations.
Dr. Vernon McGee any one? :-) God Bless him!
Love Vernon McGee. I listen to BBN.
You indeed did explain well
Portable Cassette , when humans lifted things , unlike portable toilets -similar.
As an electronics engineer, I would have NOT placed those speakers 180* out of phase, but instead placed audio deflector fold out panels that would direct the sound forward, or upward.
But that is just me.
At 19:57 I love that sound effect!
I enjoyed watching this. I like to watch until the end before commenting so as not to make a suggestion that is wrong. I do wonder how the meters work as the function seems counter intutative I would have expect on play to be sound level. Record as record level and a push button for battery state.
I'm offended that you would think I would be offended!
The rewind spindle is driven by a small belt on the top side. Perhaps it is broken.
Back when they still weren't sure what was killing Germanium semi's.... the makers of this clearly thought it was heat.
So retro!
Patience of a Saint with that Old Crap
.. don’t get me wrong, I Love Magnetic Tape,.. (for Recording purposes..)
but as “well-built” as those two things were for the time, They’re Obsolete on So Many Levels..
Kayıt sürgüsünde oksit var contak siprey gerekli.
П27 П28 low-noise transistors in our Soviet Union were put in pre-amplifiers of tape recorders.
I had a concord that looked like and opened like a attache case ... don't remember the model but I recall it sounded good...
I have a box of MPs , i love MP26, because it's have a grey metal case.)))
I have the Reel to reel version of that tape player. it plays the small reels of tape concord 1965 mine is.
Nice!
arc automatic record control possibly one of two things first it could be ONE OF THOSE DEALS WHERE IF IT SENSES NOISE IT WILL START TO RECORD OR? IT'S SOME AUTO VOLUME THING..
cool tape deck
Never apologize for anything that has to do with God folks need to hear about Him.
Yeah remember that part in the bible where god moans about his businesses being destroyed? I loved that part.
Yes,Lucifer needs to be heard.
Kind of like a Panasonic RS-254 Stereo Cassette Recorder that I bought back in late 1971 in Japan.
bet it is I see the small black squire that would be the "Panasonic N" logo and the font looks just like Panasonic
like this one ruclips.net/video/6lQ8JcArYaY/видео.html
same crumbling meters paint with my teac 3300 reel reel
Yep. Spotted that noisy leaky germanium right off the bat.
Offensive, never. Great vid and would love to hear a side vid of the whole sermon.
Don't care for the ravings of a lunatic thanks.