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Moggy's HiFi Antics
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Добавлен 6 апр 2020
This is where I discuss and exhibit all my hifi projects. I've always loved making videos, I'm not here to educate the masses or fix the world's problems.
I know what good video production is but I'm not here for that.
I'm here because I just love hifi and the technicalities of it. My career has been in electronics and broadcast television.
Biggest reason for this channel is my repairing of ESL63s. I know many others do this but I'm taking a more liberal attitude to what is required for a good speaker without going to extreme lengths. Ask any question and we can both learn.
Gear used :
Sony Handycam HDR-PJ760E 1080/25
Sony Handycam FDR-AX53 4k/25
Sony APC A6400 4k/25, 16-50mm OSS kit lens, 55-210mm OSS lens
Lens adaptor for A6400 to mount old full frame Minolta lenses.
GoPro Hero 3 Black.
Nikon 12M still camera Model P330 1080p OSS.
Zhiyun Model M gimbal, plus a few hand steadycams.
No special lighting at the moment (pretty obvious).
DaVinci Resolve editor
Rode mics.
I know what good video production is but I'm not here for that.
I'm here because I just love hifi and the technicalities of it. My career has been in electronics and broadcast television.
Biggest reason for this channel is my repairing of ESL63s. I know many others do this but I'm taking a more liberal attitude to what is required for a good speaker without going to extreme lengths. Ask any question and we can both learn.
Gear used :
Sony Handycam HDR-PJ760E 1080/25
Sony Handycam FDR-AX53 4k/25
Sony APC A6400 4k/25, 16-50mm OSS kit lens, 55-210mm OSS lens
Lens adaptor for A6400 to mount old full frame Minolta lenses.
GoPro Hero 3 Black.
Nikon 12M still camera Model P330 1080p OSS.
Zhiyun Model M gimbal, plus a few hand steadycams.
No special lighting at the moment (pretty obvious).
DaVinci Resolve editor
Rode mics.
Russell Morris 04 07 2023
www.youtube.com/@MoggysHiFiAntics
Thanks everyone for me reaching over 1000 subscriptions
I'm sporadic but I'm in for the long haul
Have fun with audio and music everyone
Thanks everyone for me reaching over 1000 subscriptions
I'm sporadic but I'm in for the long haul
Have fun with audio and music everyone
Просмотров: 45
Видео
Dayton Audio SPA250 Subwoofer Plate Amplifier. Doesn't work!
Просмотров 1,6 тыс.Год назад
www.youtube.com/@MoggysHiFiAntics
Denon DVD2900 Part 1. I'm getting a few hiccups after 20 years service
Просмотров 352Год назад
www.youtube.com/@MoggysHiFiAntics
TEAC X 10R Another R2R acquired. Finally, an Auto-Reverse
Просмотров 1,5 тыс.Год назад
www.youtube.com/@MoggysHiFiAntics
Reinsert UnRaid disk after disk power failure
Просмотров 202Год назад
www.youtube.com/@MoggysHiFiAntics
Mad Magazine 1966 It's a Gas
Просмотров 8 тыс.Год назад
www.youtube.com/@MoggysHiFiAntics I bought this Mad magazine in the mid 1960s and this amazing record was in the back cover. Not sure if I still have the mag but I have this cardboard record and I love it.
2022 12 20 update | Back home | A3440 motors | TEAC Dolby units.
Просмотров 266Год назад
ruclips.net/user/moggyshifiAntics
My belated Update for future videos
Просмотров 2852 года назад
Moggy's HiFi Antics presents...... If interested, my travels are accessed via www.mogford.com
Midnight Oil concert at Rod Laver Arena playing "We Resist" 27-3-2022
Просмотров 982 года назад
Moggy's HiFi Antics presents...... Midnight Oil concert at Rod Laver Arena playing "We Resist" 27-3-2022 Handheld recorded with my phone at 4k30p. Heavily sound eq'd and video moved around. Came out reasonably.
Nakamichi 1000ZXL Part 17 | FL display final
Просмотров 4882 года назад
Moggy's HiFi Antics presents......
TEAC X 2000M Part 3 Tape looping problem re-appears!
Просмотров 3,9 тыс.2 года назад
Moggy's HiFi Antics presents......
TEAC X 2000M Part 4 Final Freq Resp adj & check
Просмотров 2,2 тыс.2 года назад
Moggy's HiFi Antics presents......
Nakamichi ZX 7 Part 4 Orange PP caps. Worth replacing?
Просмотров 2 тыс.2 года назад
Nakamichi ZX 7 Part 4 Orange PP caps. Worth replacing?
Quad 405 Amplifier fault. 4 channel home built.
Просмотров 8912 года назад
Quad 405 Amplifier fault. 4 channel home built.
Nakamichi 1000ZXL Part 16 Orange Cap replacements
Просмотров 4482 года назад
Nakamichi 1000ZXL Part 16 Orange Cap replacements
TEAC A-2000 Reel Motor Repair. Maybe A-2xxx series too.
Просмотров 1,1 тыс.2 года назад
TEAC A-2000 Reel Motor Repair. Maybe A-2xxx series too.
Revox B215 Azimuth adjustment. Quick and dirty
Просмотров 2,2 тыс.2 года назад
Revox B215 Azimuth adjustment. Quick and dirty
Nakamichi 1000ZXL Repair Part 15 REC bias investigation. No solution yet.
Просмотров 3482 года назад
Nakamichi 1000ZXL Repair Part 15 REC bias investigation. No solution yet.
Nakamichi 1000ZXL Repair Part14. Bias partA
Просмотров 2632 года назад
Nakamichi 1000ZXL Repair Part14. Bias partA
Nakamichi 1000ZXL Repair Part 13. The next REC EQ AMP PCB fault
Просмотров 2632 года назад
Nakamichi 1000ZXL Repair Part 13. The next REC EQ AMP PCB fault
Nakamichi 1000ZXL Repair Part 12. Rec EQ Amp pcb
Просмотров 3042 года назад
Nakamichi 1000ZXL Repair Part 12. Rec EQ Amp pcb
Nakamichi 1000ZXL Repair Part 11. Audio relay trouble and replacement
Просмотров 3262 года назад
Nakamichi 1000ZXL Repair Part 11. Audio relay trouble and replacement
Nakamichi 1000ZXL Repair Part 10. Audio path faults
Просмотров 3022 года назад
Nakamichi 1000ZXL Repair Part 10. Audio path faults
Nakamichi 1000ZXL Repair Part 9. Transport Stop/Play issue and more
Просмотров 3692 года назад
Nakamichi 1000ZXL Repair Part 9. Transport Stop/Play issue and more
You were instructed to punch a hole in the middle of the record with a pencil, or to shoot a 45 cal bullet through the middle of the record for that purpose!
I remember them releasing this on a CD at one point in an issue and loving it to pieces, RIP to MAD
My friends, cousins and I used to play this over and over, laughing crazily each spin. Ahhhh! Youth!😏
I was there and it was a great time. Gerry Pantazis on drums too ! Met Russell Morris after the show, a truly fine gent happy to share a photo. Pity the video was short :(
Never met him personally but seen him a number of times since the 60s. I saw him in about 1969 at a school hall dance in Waverley playing it's a real thing. wonderful. I only recorded a little bit hand held with my phone, I wanted to enjoy the concert, which I did! His constant walking around made it hard too. 😀
Still better than a NIckleback song.
Hello! I am your subscriber! I recently bought a TEAC X 2000m in Germany, a very good device! But there is a problem! It turns out that it now works only at 19 and 9 speeds! But it was made for 38 and 19 speeds! I removed the back cover and saw that it has only one belt! Please write, maybe this is the problem??? Thank you, with respect, Nikita!
Hi, probably one of two possibilities 1/ it is not a M version 2/ it has been modified to run at slower speeds. Check all the name plates on back. It might simply be a X-2000 model with an "M" cover over the heads. If modified then that's a whole other world and you would need to find what the modifications were, I have not investigated such a route. Also check the heads to see if they actually are correct for 2T playback/record ie. 4 heads .... erase, 2T record, 2T PB and 4T PB If only 3 heads then it's a 4T deck that only does 3.75 and 7,5ips. (I always forget what the cm rate is). Oh, and the M has an IEC/NAB switch on the back, others don't have this switch. I think my M deck came with just one belt too. It didn't prevent it from working ok. It's a while ago so I don't remember if I put 2 belts in. I Need to check my videos! Don't know the reasoning behind 2 belts I plan to get back to mine for a few reasons, 1/ I think my adjustment of the arm positions is not done properly 2/ I want to revisit the toque settings for the reels as well as ensure the capstan pressures are ok, they are tricky to get right according to the manual and I don't entirely trust their method. 3/ Mine does not record, totally faulty and unkown cause. I have since bought a Tentelometer to correctly measure tape torques. Re belts To be honest the service manual descriptions of belts and capstan drive methodology is completely bonkers. The manuals confuse the standard, the R and the M as to how they work with what belts and the parts list of belts is confusing. I look forward to when I pull my M apart again so that I can definitively say whether the turns ratio of front and back capstan are the same or not. The manuals description to me sounds back to front. Eg Is it different torque on reels or different turn rate of the capstans that keeps the tension across the heads? Fortunately atm my adjustment is working fine for PB and the tapes sound fabulous on PB. It will be a few months before I get back to it. 😞 moggy
Hi Moggy, Thank you for this video. I bought the CT-F900 back in 1978 and used it for a month when it started to shut off while in play. At that time, I had the unit repaired at Pioneer's service center whereby they replaced the idler wheel. The unit worked for another week before the tapes began shutting off again. I had it "repaired" one more time at a Pioneer-authorized center, and within a week, same problem. I boxed up the virtually new unit in its original packing, and only recently opened up again. It's a beautiful unit, still in mint condition. Based on your videos and others, I carefully cleaned the reel motor. That worked for a few months, before the tapes were playing too slowly. I then shortened the idler spring per this video, because the idler wheel did not have enough upward force, however, it's still not forceful enough. Do I need to shorten the spring further, or is there something else, perhaps the other spring that is on the axel of the lower part of the idler assembly?
I try not to think about the F950 any more. 😁 The audio does sound nice but adjustments are a pain. Best to not destroy the original spring as much as possible, try another (shorter?) stronger spring to test the theory. It does sound like it needs to be stronger. With another spring you can test to your hearts content. The spring appears to be a major issue with these decks !
Moggy, thanks so much. Regarding your own ZX-7. When the BIAS oscillator blew up in smoke back then, did you have to replace transistors or resistors too or was it just 1 or 2 damaged capacitors?
sorry can't remember but certainly a cap or 2.
Hi 👋🏼 😊 beautiful cd 💿 player and new subscriber👍🏼👽
yes, it's big , heavy and interesting. I might try and squeeze in another transport, it all depends on the connecting cables and what they do. A lot of investigation is required. Someday!
I was planning on buying this NAK next week. Does it make sense (from the head and NOT the heart!) to spend hard-earned money on a deck that requires regular maintenance and upkeep? Since I don't do much recordings now, is it advisable to go in for it? Incidentally, if I do buy it, it will be a huge jump up from my present NAK CR2E.
Always hard to answer this one. I don't think they need "regular" service. However they are long in the tooth (as all the naks are) and if you want a really long life then it's best to have it "serviced" if not already done, they are about 40 years old. (1981-84) There are 4 main things to consider 1 EL caps they may be ok (I have not changed mine, yet) 2 Orange caps. I've definitely found some OG caps to fail in other machines. The update kit from 1000zxl on ebay seemed to be a good investment but you need a reliable technician to change them, some are in an awkward position. Have they been done on yours? If the ZX-7 works ok then I suppose you could delay the cap exchange until something happens, that could be a ways off. The other ZX7 that I changed caps on the owner reckons it sounds better. 3 Heads ok? Hard to see but it should be obvious if they are badly worn. Otherwise probably ok. 4 Mechanism needs a service....oiling and greasing, rubber belts and idler replaced, reel motor checked and oiled. If never done then this is possibly the most important point of these 4. .. I have never tried a CR2 (1988-90). I assume it's a 2 head type with a little adjustment of bias if necesaary. (I have a CR5 which sounds pretty good). The ZX-7 has the ability to adjust for recording 'almost' any tape type. (The typical argument is the ZX-7/9 are best for recording and the CR7 and Dragon are best for playback, yeah that's nitpicking.) I imagine the the CR2 is a worthy deck for casual use. I just checked and it has a bias tune knob so you can ensure best recording with different tape types. Levels would be by experience. It's no slouch at 20-20kHz response. As far as actual audio quality I don't know. I can say the ZX7 sounds quite awesome. It would be good if you could try out the ZX7 and compare it against the CR2. If you don't do a lot of recording or playback then perhaps the CR2 with a "service" might be enough. Up to you. 😀🙂😒😏😄
@@MoggysHiFiAntics Thank you.
will you replace the belts to my nana zx7 and please let me know how much before I shipped to you thanks
I appreciate your confidence . I am unable to take on other peoples's gear until later in the year. Where do you live? I'm in Melbourne Australia.
Where in this small Blue Marble did you get that "tape tension" test cassette. I have never seen on of them! Very nice!
They're very old school, yes. I just kept looking for them on ebay and eventually got one. There are a few different types for checking FFWD, REV and play tensions. I made sure I got one that would do play at least. Speed of REW and FFWD is not so important, usually the specs quote so many seconds for a full rewind or fast forward of a C60 cassette.
I thought of this record for some reason, I remembered having it but didn’t remember what it sounded like so I looked it up. Positive proof that you can literally find absolutely anything on RUclips.
That's hilarious because i was also just thinking about this wacky song. I remember buying the magazine and I think it came inside it..
Me too! Thanks Moggy!
This is the record that came in the center of Mad Magazine? We wore this thing out when we were kids!
We must have all had the same childhood as I remember laughing hysterically to this song
I didn't know you could use this tape deck with a remote control
I've got one of these, serviced it myself. As you rightly say, adjusting the tape heads & guides is complicated..
Super!❤
Hi, Let me first thanks you for your sharing so much practical information on quad loudspeakers. Your video's inspire me to proceed with trying to by a pair of esl 63. Something that left me wandering; does it make sense to move the full range panels on top and the 2 bass panels at the bottom? Does is lift up the sound image? Is it feasible from a practical perspective? Many thanks for any feedback your would be able to share! Kind regards, Michel
thanx. Walker designed the layout for a good reason. I don't see the reason for changing it. Simply have the speaker at the right height (not on the floor) e.g "Stand and Deliver" or "Arcici" stands. And angle it to be facing you. Also the wiring might be a mess if you alter the wiring layout.
thanks for the feedback!
4:47 At this point you should go to “Advance” tab below!
That issue of mad magazine hard to find
I discovered this cardboard record inside my MAD Magazine when I was a kid. I took a break from listening to The Beatles and The Rolling Stones and played this little cardboard record on my record player. It was a gas!
Hi Moggy interesting work you do here. Speaking your passive way of testing resonance I find your av. 83hz a bit low compared to quad writing a number (in Hz?) between 87 and 90 on some panels but not all. I could be wrong but these numbers cannot have been for a whole panel with active mesurements.
I've never found any dissertation from Quad themselves. I'm soon going to re-visit all this but likeness to new panels seems to be a good idea to me.
Please Help Another Questline "9-14 Playback Dolby NR Adjustment " same as CT-F900 Step 1- Done Step 2 -Done Step 3 - Pioneer "Apply a 1kHZ to 15 and 16 adjust the input level so the millvoltmeter indication becomes 0dbv (1v rms)" ** Redline -So set Generator output to 1.1 to 1.5v RMS? ** Than it would be at 1v and hopefully the Pioneer display meter would read 0DB ? Step 4 Please Help I'm Lost w this one ??? Pioneer "Apply an input which is 34DB below that of paragraph 3 above" OK so Adjusting the input volume down to what? (-34db=mv?) or is it -34dv= 20mv? The Pioneer DB meter only goes to -20db (ct-f900) I'm lost and not know were to put it impossible to do the next step? Step 5 Turn Dolby on Adjust VR107 and Vr108 to 1mv (-40db) I hope this makes sense Please Help Thank
Good Video I'm Calibrating a CT-F900 and at 14.83 in playback mode it says "Record and Playback -10dbv 333HZ (316mv),,,,,,,, Rotate VR107,vr108 and it all works but it say to after Maximum Level,, so lets say its at -5db(xx mv write down) than I should go down .5db?which would be -5.5db = (xx) MVac -5.0db =.56 and -5.5db =.53 so it is .03vac, I think this is Correct and set the vr107 to .53? (I think I'm figuring out what Pioneer meant, I like when they Pioneer Listed all the voltage but they missed a lot)
I was too nervous to use the screw/weight method. So I decided to loop some fishing line through the stator and tie weights as the glue was setting. Moggy. If you have an email or website I'll send you my pics to add to your knowledge archive. Thanks for making all these videos
Understandable ! I always thought that if I holed the diaphragm I would accept it and then go full hog. Fortunately I never holed the diaphragm once. Looping fishing line is admirable, certainly safer but making the line do a u-turn back out wouldn't be easy. Well done. Try youtube@mogford.com , it works . Cheers
I've got one of these. Just replaced the melted belts.
I just found one at the recycling center along with 2 other similiar. I took all 3 of them.
Unfortunately the cassette player didn't take to repair, but the radio works fine so I'm happy. Great for outside when gardening.
As this deck has a memory for the Autotune it may have an internal battery somewhere. If it has it may need changing.
something to look for, thanks
can you share the diagram sir?
Remind me in 2 weeks, I can't at the moment. sorry.
With the mod for extra protection using 2 1N5404 diodes inverse parallel, different manufacturers have different forward voltages, will this affect the accuracy of the readings?
I don't know about this mod. I would need to measure the output ac voltage to see if it is below 0.5v or 0.3v ac. I wouldn't do this because it is so low. Arguably a higher voltage limit might be useful e.g. 3 series diodes in LLel with 3 series ie. 1.5v each way. I find it easier to just ensure the cap is fully discharged before use. This isn't something I've given any thought to.
Hi . Unfortunately you aren't a professional technician. You don't know anything about the nakamichi 1000zxl . Poor deck stucks in your hand. Sorry
I have been a professional maintenance technician at a tv station and a technical officer in R&D for Agilent for a total of 37 years. As far as being a permanent techo for a hifi shop, no I have not, but I know how to follow schematics and work on mechanicals and optics too. Very few Nak techs are still around so the rest of us have to do the best we can with the lack of spare parts available. What I did do on this machine I felt I did a good job BUT it is a complex deck that I got stuck on a couple of issues that I did not have time to sort out (display and bias). It now plays music great. I offered to buy the deck so that I could look at it at a later date but he declined so I had to give it back unfinished since I was going overseas for 8 months. No, I'm not a Nak technician but so what? Who cares? I love doing these repairs and haven't failed on a deck yet. This 1000zxl is probably the only unfinished one. I repair all manner of things including cars, motorbikes, computers, toasters and washing machines, not just cassette decks. I've built a few amplifiers. I avoid repair of multi-channel receivers if possible 😄. On yootoob there are many different styles of repair: xraytonyb is excellent. Mr Carlsons lab is excellent. Hifirulezz is ok but I find him hard to understand (eastern EU accent) and he glosses over a lot . 12voltvid is acceptable but his repair methods are sloppy.Then there's me, retired and having fun! If you want a "pro" then send it to Willy Hermann, I don't mind.
Chris M, i have enjoyed all your 16 videos. Well done, meticulous, step-by-step procedures. I look forward to your demo on stretching, coating and more measurement; especially your new stretching jig. I concurred with you that when using gaffer tape, the mylar inevitably loses tension; I also like your weight method to check tension after gluing. I also appreciated the amount of experiment you came up with to characterize the resonance and correlate to weights method. If i remember you chose 160 gm as the reasonable target ? thanks. look forward to more videos.
Как приобрести такой конструктор?
www.altronics.com.au/p/k2574-esr-meter-kit/ or try www.evbesrmeter.pt/blue2esr.htm probably better being from Europe
Hi I have a pioneer ct 950 when I first got it all was fab but but a cassette in othe day and it will mot play some sound from the mother but the tape will not play or rewind or fast forward can you advise please
Just too many issues. You need to get a technician to look at it. The CT-F950 are well worth getting fixed, they can be sold for a few bob.
Great video , but what is the size of the belt as there are numerous on the market of different sizes?
I don't think it's that important, it's only for the drawer. I might have got mine from www.vintage-electronics.net/ which is where I get most belts.
Yeah I've got the same unit and mine came with feet. Originally it came with feet, I would guess to say that wherever you got it from somebody had taken it apart and just didn't put on the feet or maybe the feet rotted off, I mean that certainly happens
Great tutorial. I just started playing with the software to adjust my 7 cassette players. Keep then coming from a young chap!!!
Hello! I have the same problem, did you solve it?
I didn't. Perhaps one of the chaps below may have. I had to give it back unfinished as I was going overseas for an extended period. I offered to buy it but he declined. The display defied me and the bias cct was not resolved.
hi room is the thing why i have head blocks i can change over on the otari mtr from 2 and 4 track i am a tec just got into betacam sp the betacam sp liner audio can walk all over reel to reel not joking it's 6 times the speed of betamam liner audio and price of tape studio are ask of new sealed is £1 each tape some times fee tapes
$1400 down there money i payed £350 uk for a RS1700 it was 20 years ago the price of reel to reel are now silly i have the space to keep them and no ladies around on one lady a big old cat i had ladys i kicked her out they try the take over i had aloy of models love the pro deck like the otari mtr 12 inch and bigger spools
May I know how to remove the metal side panel and the back dust cover?
I am calibrating a CT F950 to 160nWb/m. The 1.12V in section 9.3 is too high. I used 700mV ( 710mV). How do you set VR203, VR204 in section9.9 ? Is TP 5 actually the board pin 5? I could adjust VR205, VR206 from that #5 . There doesn't seem to be a TP for just VR203, VR204. Thanks
I'm also Calibrating my ct-f1250 and ct-f900 around 710mv So when I play a weak tape I will have playback full range, which is really cool but one set to 1.12v will Barely move the display like -6db which is boring Still figuring if how it effects the recording? Levels
Update - Must do this after all Calibration (Adjustments) are done, it will effect all the voltage for Calibration. its already to hard to figure it out PIONEER TEXT and than converting it would almost be impossible and confusing.
That's possibly the worst CD player I've ever seen. Everything about it screams snake oil- the design fixes zero engineering problems whilst introducing a hundred more. CDs are not vinyl records and CD players don't need to be like turntables.
I got one recently and the power button just went out on me, it won’t stay pressed in when I push it. Any idea how to fix it? This is my first reel to reel ever.
It's either fallen to bits inside and possibly non-recoverable or it has simply got stuck. Turn off power and spray the inside of the switch with deoxit or rp7 or wd40, it may be tricky to find an entry point. Switch on and off numerous times (power off) and hope it clears up. Try to keep liquid from spreading elsewhere. If that doesn't work then it needs to be pulled apart and fixed or replaced.
Congratulations for your channel. I have a CT F900, as of this evening the TAPE COUNTER no longer runs, and therefore after a few turns it stops. I would like to know if there is a belt or is it an electronic problem. Thank you
The ctf950 may not use a belt, it uses an optical encoder and digital display. I don't know if the 900 does the same thing. Try downloading a service manual from hifiengine.com, Good luck.
Chris, got all panels rebuilt in one of my 2905's. Other speaker still to start. Striping the old adhesive is the pits. I went the whole hog and built a weight balanced jig as it's seems it's the only way to enable heating of film and do it quad spec and have film hold correct tension long term. Going to have to strip out the panels again and clean the edges of the film as I have a little leakage somewhere and I think that the most likely as impossible to see ER coating go on,, possible fingerprint or two on edge. But sounding wonderful,, totally blown away at how Melody Gardot jumped out of the speaker and looking forward to getting the second one going. Worth every second of the laborious hours spent. I expect the second may go a little quicker as I learned a lot on the first. 2ml syringes (no needle) were invaluable for applying both stator and diaphragm glues neatly, quickly and in "appropriate" amounts. Hope your well, and happy, Ray.
Glad to hear. I plan to use springs instead of weights, same principle. I'll be re-starting the esl series very soon. I miss my esl listening very much.
Chris,, after having did it,,, I'm not sure I would be happy to use springs. When you heat the film you do get a fair bit of relaxing perhaps 10-12mm over the film width. so will take some tension of springs. but much better than taping film to glass, can't see that working for any length of time now seeing the tensions involved. The jig was not difficult or expensive to build,,, I will send you some pics if you like. Most of the work went into welding jaws onto the clamps, and covering jaws in rubber, 34 clamps. The force on the film is very close to breaking point,,,, very close 1.8 Newtons on each clamp. Your going to have to do clamps anyway do conciser weight jig. Pity your not in Ireland you could have used mine. Cleaning frames from other speaker at present,,, going to try diaphragm glue to see how it goes on one stator, much tougher stuff as it don't swell as much. Reckon it would last better. None of my old diaphragm films were torn, tension was low. Stators had only broken glue in a few places but pulled all apart and redone the lot fresh, with hopes of longevity. Happy to draw up what I did to build jig and send pics if it could help. Best Wishes, Ray
@@user-rd9nj6xt3v Springs do the same for weight as do actual weights. The springs each have a scale so if there is some relaxation I can tension each more so. I've yet to know what tension I need so these make it simple. I could change to weights when I know the kgF required for each but I don't see the need at the moment. I currently have 28 positions. You have 2 more on long side and 1 more on short side. 1.8N = 184gm per 34 places (6.25kg total). So 6.25kg/28 = 223gm (2.2N) per clamp. This might be a good place to start, thanks. It comes down to what resonance I get on the gluing jig. BTW, I DON'T heat the film, that's a disaster, the film just suddenly contracts and destroys what I have done. There is NO point where the film contracts "slightly", i.e. no in-between state. Definitely NO "relaxing". I'm yet to understand why heating of the film is mentioned by some, at all.
Thank you for the very thorough look into this app. 😊
Actually I missed a few valid points and made some improper assumptions, but I intend to show the app in future videos. Anyhow it's a nice piece of kit.
It is absolutely wrong replacement. This deck can achieve it's own spec only with the proper sizes pin h rollers. This decks are equipped even with different size left and right pinch rollers, like one is 100mm and the other is 11mm. It is not a good job .
I would have used the right size if I could get one. Having said that I see no problem. A larger roller has a better grip on the capstan and less prone to slipping. You haven't given a reason. The only thing I can think of is that it depends on a certain slippage between the two. Is that what you are saying? If so you may be right but it works and works well. The difference in slippage is miniscule.
hi the prices for R2R deck is up big time in the past i used to get them at silly money rs 1700 for £350 tascam 38 as parts £50 uk i am a tec with space to keep decks note i am finding betacam liner audio is now the best sound for the money as R2 R tapes can be juck to age 30min quad audio for £1 each the price of tape is now very silly i got a tascam 34B for low money 3 3/4 7 1/2 i jazzed the speed and eq 3 3/4 on a 10.5 is hard to find in the uk i do play about with decks and make them do things they were not made for otari 12 with a 8 track 1/2 inch 8 tracks change over the head block to play tapes recorded on a deck that went bad and could not be fixed smoking is the word did not get to the cap changing in time
Yes pre-recorded stuff is silly. My aim is to record my own stuff
🤣🌷 Hare Kṛṣṇa 🌷
I had a similar problem with my Mephisto II, which did not find the zero position of the laser. Did you change the drive belt of the laser positioning unit? The old one is hardened and slips during positioning. I replaced it by a standard rubber ring and it works fine again.
I can't recall. I should have checked such an issue. I now have it as a junk item, perhaps I will have another go at it next year. Ta.