The FM RF amplifier transistors have no power dissipation stress, but they are first in line if someone zaps the telescope antenna with a static discharge in a low humidity environment.
So little max doing his static electricity experiments with this vintage radio is what killed the transistor? 😠 (Rubbing a balloon on one’s jumper and touching the antenna with the charged balloon to hear static on MW)
I have a pair of Ross RE-999 walkie-talkies from the later 60's that I inherited from my deceased childhood friend, been sitting for probably close to 50 years unused, put batteries in still works perfectly, loud,clear, sensitive, transmits good, heavy cast metal front case, a quality product made in Japan. I have not re-capped or done any thing to these at all, the are in the orig. box with mànual and schematic. Proves good stuff can be made.
The Ross 13 transistor radio was a "show off" radio of the 1970s. It was cheaply made and felt so, with the leatherette cover, combined power on/off and volume control, and (I believe) direct drive variable tuning capacitor. "Show off" because it had dual antennas, which otherwise only expensive radios had (though these here were short and thin), and dual speakers (but not stereo). It was really lightweight. Shortwave wasn't great on this radio--low selectivity. What was cool about it was that unlike many other portable radios, it had the power supply built into the chassis, including the power supply cable. As you can see early in the video, the lower part of the leatherette back flipped open and revealed the power cable. Fun to see one of them still alive.
15:47 . . . Exactly!!! the sound 'bink' when the spring relaxes in the tuning drum, after the soldering pencil bumps the dial string.... "SON OF A ____ !!!!"
I know your about doing things right but I have to say that once I found the weak caps by bridging in a good one,I would have soldered it in on the back of the board leaving the old in place. We all hate messing with dial cords! Love your videos!!
Just a note, I begin my day watching one to 5 of your video's. It is sort of like the way I did back when I was able, heading to the Coffee shop to drink copy with my buddies on the Police Force many moons ago when I was a cop. I really enjoy the comedy and the actual information that I can use in my hobby of building shit from parts and being amazed when I put power to them and they DO SOMETHING!. My politics are in sync with yours, I have been a strong conservative, just a bit to the right of my old hero who now sits in heaven next to the love of my life, my wife of 51 years whom I lost to cancer during the fear of COVID when the hospital could not check her stomach pain and treated her for an ulcer as the cancer in her stomach spread throughout her body and took her from me. At any rate I just wanted to give you a hint at how to return to the land of the free, where there is no danger of the ocean ever coming on shore, or an earthquake will never cause the state to fall off into the ocean. South Dakota, the home of the Badlands, the Black Hills where beauty all around you, and the great plains of South Dakota, where wildlife is betting back to the early days of man with deer and antelope play, where the fox, the coyote, ,and the wolf fight for the pheasants, Grouse, and Rabbit hide from the little prairie rattler. Where the cold keeps the minority population down to an occasional sighting passing through, especially in the winters when the mercury drops to -40 degrees F. Where there is NO State Income Tax, where our Governor loves the people and not the Party where she fights for our rights, including the right to carry a firearm as you choose, either concealed or in the open. Where the airwaves are free of the pollution by hundreds of radio stations, where little home town stations talk of the local news and where even most of the bar tenders are very conservative. Indeed, it is no Russia, but more a USA before the idiots took over. Come on up, houses can be had for well under a hundred grand, the 3 BR Ranch I purchased 25 years ago, I got for 20 thousand bucks, and has been paid for now for over 15 years. Anyhow keep us in mind when you flee the left coast, in fact right now a beautiful home once owned by a carpenter who remade the interior as he desired into a great place to live is on sale for around 50 thousand bucks.
Had one of these or a similar one when I was a kid. It was a thrift store find that my dad bought me. Listened to all kinds of stuff on it for quite a while.
Every once in a while you have an epic moment in your videos that makes me laugh whenever I hear it, no matter how many times... "now to try and sol-der it in there" was awesome!
I own some Ross radios and Ross radios was an affordable radio. This radio in particular is a 50+ year old radio and the manufacturer never intended for this radio to be serviced. This was after all a throwaway radio. Today we have collectors collecting these radios. My first Ross Radio was around 1972 and shortwave was better then. I listen to my radios and believe me you need a working radio during a power outage and it did happen for me the other day. Thank goodness I had a reading lamp that was rechargeable.
Good video, I have a very similar radio branded real tone model 2424 made in Japan in 1970 4 bands 14 transistors. Fm Am Bc Sw. all band work well except for FM. Probably the same problem. And you are right hard to work on, everything has to com apart and the circuit board is really crammed and traces come loose from the board.
grabbed one of these at the local flea market for $15 last weekend and other than dirty selector switch and volume pot, seems to function as well as it ever did. Mine has the same model number and markings but it has a completely different pcb layout and both the speakers in my unit are identical size and part #.
Eli "Edward" Ross, 73, whose rolodex read like a Who's Who of Far East business leaders from Tokyo to Hong Kong to Taipei and Shanghai, died on July 18 (2006) of complications from a recent hospitalization. The former president and CEO of Chicago-based Ross Electronics, in 1965 Mr. Ross took over the helm of the company his father founded a decade previous. Widely recognized as the first company to establish manufacturing operations in Tokyo after the war with Japan ended, Ross Electronics developed, designed, marketed and imported consumer audio equipment and home entertainment devices. Working with the new manufacturing of Japanese industry, Ross Electronics was credited with bringing miniature sized transistor radios into the U.S. Ross Electronics was the first company to develop specialty electronics, placing radio technology inside items such as stuffed animals, sun glasses, cigarette consoles, etc. He is survived by ... (continues)
I think a lot of those RF transistors in the front end just get zapped with ESD damaged as they are directly connected with the antenna. People walk on a nylon carpet then grab the antenna. Bipolar are less sensitive to ESD but they are not immune to ESD damage. Nice looking radio nice fix.
5:16 Notice that the audio outputs have both NPN and PNP transistors. This configuration is called a "complementary amplifier" circuit. Man, that radio is clean and shiny - inside and out! 21:00 The Russian Woodpecker is back? Say it isn't so. That had ended when the DUGA over-the-horizon radar lost its source of power - the Chernobyl Nuclear Power station, in 1986.
I'm going blind trying to see if the arrows are pointing out or in, but both the emitters are connected to the positive ground, to they should all be pointing in, making them all PNP transistors. The "complimentary" circuits came later when NPN transistors became more accessible and usually had transformerless outputs.
I happen to have all the germanium (PNP) capacitors in my possession. About 200 of them, plus the OC80 and 81 signal diodes, all brand new. Free to a good home.
Excellent work. I usually recap just to future proof. Even top brands leak eventually. Did you see Adrians digital basement did a cap switch to from a 1 mic to a 10 mic cap on the 5 core radio to improve The AM sound.
The transistor may be dying from static electricity as opposed to excessive current. Static discharge could be exceeding B-E reverse breakdown and killing it even if it is DC blocked
I always get a kick out of it when they decided to use 7 transistors where 3 would do and connect them as diodes to further up the count. In the 50's they did the same thing with tube count in some off brand televisions. Hey, the speakers are Pioneer!! High quality (ha ha).
Simon Spiers, i'm sure when the fun fair used to come to town they had similar cheap radios like that one for sale or win, but from hong kong. (mostly cardboard and fake leather). Nothing to write home about, quicker to walk home than send a letter :-D
After the repair, it performed exactly, as I do remember those cheap Japanese transistor radios from around 1970: Very bad selectivity, bad sensivity, generally noisy and always some distortion on weaker signals. They looked tempting in the leavelet, but every German radio (even in the same price range) just blew them away...
These sets work well don't they? As far as the Idling current goes, some of these sets have electrolytics across the battery. These can go leaky and put up the current. Worth checking? And as for the RF Tramsistors failing - I have had the same problem and also on PMR (Taxi) radios as well. The switch on surge maybe?
13 Transistors twin speaker Boom Box now with Russian 13th transistor and who in the hell can get the word Viagra in a radio repair video this is why i watch this channel its the randomness
Muscatel is a type of wine made from muscat grapes. Now ...in the US.. refers to a fortified wine made from these grapes.... became popular when, at the end of prohibition, in order to meet the large demand for wine, some poor strains of muscat grapes (used normally for table grapes or raisins) mixed with sugar and cheap brandy were used to produce what has since become infamous as a wino wine.
I heard what sounds like the "Russian woodpecker " the second you switch it to shortwave. I remember that irritating sound well from my youth first into the shortwave listening hobby when I was 10 years old in the 70's. It always interfered as soon as I was waiting on a new found station to identify.
KEMET was an US company till Taiwan chinese company YAGEO bought it. The soviet date code is August 1978. Two speakers in parallel - in part of their frequency range almost a Leslie speaker.
Couldn't find any info confirming Ross Electronics corporation is still around, but i found this on bloomberg "Ross Electronics Ltd Ross Electronics Ltd provides electronic products. The Company offers installed and serviced televisions, stereo equipment, antennas, and bearcat scanners, as well as deals in home theater sales and installation and computers and networking. Ross Electronics serves customers in the United States."
I HAD TO RE-TUCK MY POLO INTO MY KHAKI SHORTS THREE TIMES AND DOUBLE WAX MY CORVETTE WHILE ON VIAGRA WAITING ON YOUR SNURGLE FLURGING MASTERCHARGING CAPACITOR REPLACEMENT! XOXOXOXO
There was transistor is a package like bfr34 bfg65 but skinnier - was used by GE and Sony radios. Saw them in early 80s. Never foud out what it was. Looks like the NEC mesfet 3sk74 ?
I’m just curious how I can get in contact with you! I have an older GE AM Transistor radio that has little to no output at all and used to be great! I wrote you a comment at the start of the pandemic and all, so maybe we could arrange something, I’ve never shipped a radio across country for repair but that part makes me nervous. But I would like to see like it work again
Shango, I can’t tell you how much I love these videos. Love the sarcastic humor. Keep it up.
same
Totally!!!
Shango is the men 🤟🏻⚡️⚡️🤟🏻
The FM RF amplifier transistors have no power dissipation stress, but they are first in line if someone zaps the telescope antenna with a static discharge in a low humidity environment.
So little max doing his static electricity experiments with this vintage radio is what killed the transistor? 😠 (Rubbing a balloon on one’s jumper and touching the antenna with the charged balloon to hear static on MW)
“WWV-all the time, all the time”
It was the fluffy 🐱
I'm glad I found this channel. The tech skill combined with the sarcasm is awesome.
I have a pair of Ross RE-999 walkie-talkies from the later 60's that I inherited from my deceased childhood friend, been sitting for probably close to 50 years unused, put batteries in still works perfectly, loud,clear, sensitive, transmits good, heavy cast metal front case, a quality product made in Japan. I have not re-capped or done any thing to these at all, the are in the orig. box with mànual and schematic. Proves good stuff can be made.
Thanks for the WWV. My watch was behind.
The Ross 13 transistor radio was a "show off" radio of the 1970s. It was cheaply made and felt so, with the leatherette cover, combined power on/off and volume control, and (I believe) direct drive variable tuning capacitor. "Show off" because it had dual antennas, which otherwise only expensive radios had (though these here were short and thin), and dual speakers (but not stereo). It was really lightweight. Shortwave wasn't great on this radio--low selectivity. What was cool about it was that unlike many other portable radios, it had the power supply built into the chassis, including the power supply cable. As you can see early in the video, the lower part of the leatherette back flipped open and revealed the power cable. Fun to see one of them still alive.
I love these videos. I miss fixing radios and other electronics. Thank you
Good diagnostics, great repair, superb witty patter! What more could anyone want! Thanks Shango!
I had an Ross AM FM Radio like this one. It was our daily runner back in the day. We were lucky to have a couple of FM stations. Nice video!
Brilliant! Stacking the transistor on top of the bad one! Now THAT's creative! Nicely Done!
15:47 . . . Exactly!!! the sound 'bink' when the spring relaxes in the tuning drum, after the soldering pencil bumps the dial string.... "SON OF A ____ !!!!"
Yep, a repair gone horribly wrong. I've never had the patience to finish a repair once that happens. Dial strings/springs! AAAAGH!!
11:42 A woofer and a tweeter, both by Pioneer! I can just imagine the brochure write-up.
The "blue gloved" wizard strikes again! Great tech video. Thanks for the look.
I know your about doing things right but I have to say that once I found the weak caps by bridging in a good one,I would have soldered it in on the back of the board leaving the old in place. We all hate messing with dial cords! Love your videos!!
Just a note, I begin my day watching one to 5 of your video's. It is sort of like the way I did back when I was able, heading to the Coffee shop to drink copy with my buddies on the Police Force many moons ago when I was a cop. I really enjoy the comedy and the actual information that I can use in my hobby of building shit from parts and being amazed when I put power to them and they DO SOMETHING!. My politics are in sync with yours, I have been a strong conservative, just a bit to the right of my old hero who now sits in heaven next to the love of my life, my wife of 51 years whom I lost to cancer during the fear of COVID when the hospital could not check her stomach pain and treated her for an ulcer as the cancer in her stomach spread throughout her body and took her from me. At any rate I just wanted to give you a hint at how to return to the land of the free, where there is no danger of the ocean ever coming on shore, or an earthquake will never cause the state to fall off into the ocean. South Dakota, the home of the Badlands, the Black Hills where beauty all around you, and the great plains of South Dakota, where wildlife is betting back to the early days of man with deer and antelope play, where the fox, the coyote, ,and the wolf fight for the pheasants, Grouse, and Rabbit hide from the little prairie rattler. Where the cold keeps the minority population down to an occasional sighting passing through, especially in the winters when the mercury drops to -40 degrees F. Where there is NO State Income Tax, where our Governor loves the people and not the Party where she fights for our rights, including the right to carry a firearm as you choose, either concealed or in the open. Where the airwaves are free of the pollution by hundreds of radio stations, where little home town stations talk of the local news and where even most of the bar tenders are very conservative. Indeed, it is no Russia, but more a USA before the idiots took over. Come on up, houses can be had for well under a hundred grand, the 3 BR Ranch I purchased 25 years ago, I got for 20 thousand bucks, and has been paid for now for over 15 years. Anyhow keep us in mind when you flee the left coast, in fact right now a beautiful home once owned by a carpenter who remade the interior as he desired into a great place to live is on sale for around 50 thousand bucks.
Wow, I'm impressed... BJTs in parallel, TWO antennas, TWO small crappy speakers and they're DIFFERENT! What an "engineering marvel"!☻
The Ross sets are from the days when Japan made crap. As time went on, they got a hella lot better as we all know.
Very cool video I like those radio s great job fixing it
Had one of these or a similar one when I was a kid. It was a thrift store find that my dad bought me. Listened to all kinds of stuff on it for quite a while.
My brother had that Ross radio, hadn't thought about it in decades.
Nice looking radio!! Great job!
I like analog ammeters. The needle dances around with the music.
Here we have.... A transistor bulb inflated portable radio... keep up the good work your videos are the top of the line best out there
It was amazing. great idea to solder the transistor on top.
Excellent repair! Thanks a lot for vid. 👍
Excellent repairing.
Wow. My Grandfather gave me one of those for Christmas back in about 1967. Neato.
That is a "twoofer" speaker configuration. Not really a woofer or a tweeter, but you get two.
There's only one Shango066 and he is" The King" of repair and commentary, Period!
Every once in a while you have an epic moment in your videos that makes me laugh whenever I hear it, no matter how many times... "now to try and sol-der it in there" was awesome!
Love to see that video, my mom bought that radio for me in 1984
Interesting that those speakers are Pioneer.
Yeah I spotted that. One quality component then.
Question 2 speakers, why not one larger one, could there not be some room? I assume it's a marketing feature
I have come across many (cheap) 1970s radios with Pioneer speakers inside of them.
“Quality” like, it’s a Cadillac…cimaron
Quality? They were cheap mass produced stuff for small radio's tape recorders at the time, no better or worse that any other low end speaker
I own some Ross radios and Ross radios was an affordable radio. This radio in particular is a 50+ year old radio and the manufacturer never intended for this radio to be serviced. This was after all a throwaway radio. Today we have collectors collecting these radios. My first Ross Radio was around 1972 and shortwave was better then. I listen to my radios and believe me you need a working radio during a power outage and it did happen for me the other day. Thank goodness I had a reading lamp that was rechargeable.
Good video, I have a very similar radio branded real tone model 2424 made in Japan in 1970 4 bands 14 transistors. Fm Am Bc Sw. all band work well except for FM. Probably the same problem. And you are right hard to work on, everything has to com apart and the circuit board is really crammed and traces come loose from the board.
Great Repair as always but the commentaries are the tops. It's a looker of a radio with TWIN PIONER SPEAKERS.
grabbed one of these at the local flea market for $15 last weekend and other than dirty selector switch and volume pot, seems to function as well as it ever did. Mine has the same model number and markings but it has a completely different pcb layout and both the speakers in my unit are identical size and part #.
Great video as always Mr Shangwino
Eli "Edward" Ross, 73, whose rolodex read like a Who's Who of Far East business leaders from Tokyo to Hong Kong to Taipei and Shanghai, died on July 18 (2006) of complications from a recent hospitalization. The former president and CEO of Chicago-based Ross Electronics, in 1965 Mr. Ross took over the helm of the company his father founded a decade previous. Widely recognized as the first company to establish manufacturing operations in Tokyo after the war with Japan ended, Ross Electronics developed, designed, marketed and imported consumer audio equipment and home entertainment devices. Working with the new manufacturing of Japanese industry, Ross Electronics was credited with bringing miniature sized transistor radios into the U.S. Ross Electronics was the first company to develop specialty electronics, placing radio technology inside items such as stuffed animals, sun glasses, cigarette consoles, etc. He is survived by ... (continues)
I think a lot of those RF transistors in the front end just get zapped with ESD damaged as they are directly connected with the antenna. People walk on a nylon carpet then grab the antenna. Bipolar are less sensitive to ESD but they are not immune to ESD damage. Nice looking radio nice fix.
Bipolar people or bipolar transistors? Ha Ha regards.
5:16
Notice that the audio outputs have both NPN and PNP transistors.
This configuration is called a "complementary amplifier" circuit.
Man, that radio is clean and shiny - inside and out!
21:00
The Russian Woodpecker is back? Say it isn't so.
That had ended when the DUGA over-the-horizon radar lost its source of power - the Chernobyl Nuclear Power station, in 1986.
I'm going blind trying to see if the arrows are pointing out or in, but both the emitters are connected to the positive ground, to they should all be pointing in, making them all PNP transistors. The "complimentary" circuits came later when NPN transistors became more accessible and usually had transformerless outputs.
I happen to have all the germanium (PNP) capacitors in my possession. About 200 of them, plus the OC80 and 81 signal diodes, all brand new. Free to a good home.
I will take them if you still have them.
The road to happiness is paved in solder wick.
I need my GRUNDIG MAJISTIC 7000 brought back to life please.
I would love to see a Grundig repair.👍 Great stuff.
My late grandparents had that radio since the 1960's and it had the radio broadcast listing on the side.
It's fun listening to wwv all day! Lol 😆
Click Click Click Click, Boo Booo Booo Beeeeeeepppp
Nice that they made that R.F. Stage tuned.
With some F.M. Receiver designs it's just a periodic.
I had that same Ross radio. Mine had the original Ross batteries and the had not leaked at all.
Wonderful Video
Excellent work. I usually recap just to future proof. Even top brands leak eventually. Did you see Adrians digital basement did a cap switch to from a 1 mic to a 10 mic cap on the 5 core radio to improve The AM sound.
Hi Shang0. Great to see another video,from you. Till your next video. All my best.
great video to see thanks.
Wow! Realy Amazing! 😲👌🏻👆🏻🙏🏻
The transistor may be dying from static electricity as opposed to excessive current. Static discharge could be exceeding B-E reverse breakdown and killing it even if it is DC blocked
vintage shango066 video!!!! running for fridge....beer, snacks.....ok go!
I always get a kick out of it when they decided to use 7 transistors where 3 would do and connect them as diodes to further up the count. In the 50's they did the same thing with tube count in some off brand televisions. Hey, the speakers are Pioneer!! High quality (ha ha).
Love the use of Capacitor jumoer to id bad caps.
Im amazed at your level of knowledge and wisdom in electronic repair. How can i increase my troubleshooting knowledge?
That 4 pin RF transistor is similar to the AF127's that replaced the crappy AF117's that always have tin whiskers in them.
Simon Spiers, i'm sure when the fun fair used to come to town they had similar cheap radios like that one for sale or win, but from hong kong. (mostly cardboard and fake leather).
Nothing to write home about, quicker to walk home than send a letter :-D
You said solder correctly 👏👏👏
I will always call it sorder.
Good job bro
After the repair, it performed exactly, as I do remember those cheap Japanese transistor radios from around 1970: Very bad selectivity, bad sensivity, generally noisy and always some distortion on weaker signals. They looked tempting in the leavelet, but every German radio (even in the same price range) just blew them away...
These sets work well don't they? As far as the Idling current goes, some of these sets have electrolytics across the battery. These can go leaky and put up the current. Worth checking? And as for the RF Tramsistors failing - I have had the same problem and also on PMR (Taxi) radios as well. The switch on surge maybe?
13 Transistors twin speaker Boom Box now with Russian 13th transistor and who in the hell can get the word Viagra in a radio repair video this is why i watch this channel its the randomness
Shango is getting funnier with each new video. Love it!
He is the Day Job Orchestra of radio & TV repair!
Still got mine we use it every day still good
J'aime beaucoup les transistors , ce monde a des oreilles hahahahaaaaa , merci pour cet vidéo
All the best stuff is from Japan!
As Justin Beaver gets older, his voice is aging like a fine bottle of Muscatel.
More like Thunderbird or Cisco.
Muscatel is a type of wine made from muscat grapes. Now ...in the US.. refers to a fortified wine made from these grapes.... became popular when, at the end of prohibition, in order to meet the large demand for wine, some poor strains of muscat grapes (used normally for table grapes or raisins) mixed with sugar and cheap brandy were used to produce what has since become infamous as a wino wine.
@@boggy7665 Yeah, but Muscatel is too classy. How about Panther piss?
Excellent viedo, sometime could you do a restringing viedo?
Comment on the two speakers. They match the two whip antennas.
I sent you some BTC, thank you very much for the awesome content. :-)
That's awesome. I hope you like Trinitron repairs cuz I got a fun one coming up...
The Trinitron repairs are my favorite! I will look forward to that soon😀
I heard what sounds like the "Russian woodpecker " the second you switch it to shortwave. I remember that irritating sound well from my youth first into the shortwave listening hobby when I was 10 years old in the 70's. It always interfered as soon as I was waiting on a new found station to identify.
Wow vare nac.. Abdul iraq bagdhad
"Everyone's touchy about that now..." Hahahaha you are entertainment gold! Getting soft...lol...
Thank you 🎵
Static discharge to the antenna will pop that first RF transistor
Great video as usual, thank you master shango066
Those germanium transistors are quite immune for it. They just die of age.
I was thinking that, somebody dragging their feet over the nylon carpet and touches the antenna.. that or old age
You should have tee shirts made that say " BAD CAPACITOR " 😆
KEMET was an US company till Taiwan chinese company YAGEO bought it. The soviet date code is August 1978. Two speakers in parallel - in part of their frequency range almost a Leslie speaker.
WTF?! EXPERT!!!!!!!!!!!!!!!!!!!
>The soviet date code is August 1978
Approve that.
Couldn't find any info confirming Ross Electronics corporation is still around, but i found this on bloomberg "Ross Electronics Ltd
Ross Electronics Ltd provides electronic products. The Company offers installed and serviced televisions, stereo equipment, antennas, and bearcat scanners, as well as deals in home theater sales and installation and computers and networking. Ross Electronics serves customers in the United States."
I HAD TO RE-TUCK MY POLO INTO MY KHAKI SHORTS THREE TIMES AND DOUBLE WAX MY CORVETTE WHILE ON VIAGRA WAITING ON YOUR SNURGLE FLURGING MASTERCHARGING CAPACITOR REPLACEMENT! XOXOXOXO
Gangsta' Radio Repair!
If doing outside work, recap and then diagnose. Probably cures 80% of issues out of the gate. Or just take a wire brush and water hose to it.
pro tip: watch series on kaldroStream. I've been using them for watching loads of movies these days.
@Forest Braylen yea, been watching on Kaldrostream for since november myself :D
@Forest Braylen yea, I've been watching on kaldroStream for months myself :D
@Forest Braylen definitely, been watching on KaldroStream for since november myself =)
@Forest Braylen Yup, I have been watching on kaldrostream for since november myself :)
Thanks!
Do You Have A Good Capaciter
To Poke Around To Check For The Bad one?
Hi Shango, Perhaps an external antenna connected to the radios antenna could cause the failure of those front end transistors.
Brilliant 👍
Good repair and love the commentary.
Finally a shango repair.. 🙂
Maybe those transistors get finger-blasted with static through the antenna?
Hi thank you for thes video
Im abduol iraq bagdhad
I have a beautiful Realistic Concertmaster FM only radio Mod 12-699 Japan. Everything works but the volume is very low any suggestions?
I think I saw a 1967 date code on one of the speakers and a 50th week of '66 on the other speaker; so, this radio was probably made in 1967.
My God this guy - savant. Straight up savant.
There was transistor is a package like bfr34 bfg65 but skinnier - was used by GE and Sony radios. Saw them in early 80s. Never foud out what it was. Looks like the NEC mesfet 3sk74 ?
OMG that hole going soft thing and recapping porn omg LMAO
I wonder if a static discharge is a possible cause of the RF amp failing.
I think what kills the input transistors is high energy discharge of static when someone touches the antenna to use it.
That case design was used with a million different brands, normally cheap budget makes.
I’m just curious how I can get in contact with you! I have an older GE AM Transistor radio that has little to no output at all and used to be great! I wrote you a comment at the start of the pandemic and all, so maybe we could arrange something, I’ve never shipped a radio across country for repair but that part makes me nervous. But I would like to see like it work again
@@daleburrell6273 I don’t believe so because when I touch the board in certain places it livens up a bit
YaY New Video!
Dear Shango066, Nice jiob, Can you tell me what size cap you use to jump the defecrive cap?
never thought I'll see GT313 in numbers again (or KT3126 for that matter)
I've got some from ebay not that long ago
se eu nao me engano , temos caixa desse radio nova na caixa , preciso ver na loja , abraços
Can i ask ? if what cause if switch to power On, a few seconds suddenly back to standby mode