That's so cool. 30 seconds in: I've never seen a Sony reel-to-reel before, even in pictures or video. Or at least that I can specifically recall. Nice!!!
Hello there, what I've learnt from my experience working in tight spaces (cars, vans) were you can't use an iron and plug in terminals are too inconvenient or outright impossible to crimp is to use WAGO style connectors. Connecting is just as easy as flicking a switch and can be disconnected in no time, several have two loops for use with self tappers and screw them down. I absolutely love to use this kind of connectors and it really changed the quality of my job. And yes I probably wouldn't have done inside this unit as it sticks out like a sore thumb... but otherwise absolutely fine even for low level signals.
Well done Dave :-D, the owner will be happy and it won't fail again . That style of edge connector was used on the Sinclair Zx81 and Zx spectrum computers. So many crashes were caused by that crap connector.
@@12voltvids I had a friend that had the Ti99/4A. I didn't know if the " A " made any difference. Sadly he passed away about 20 years ago. . I enjoyed making interfaces for the spectrum (Zilog Z80A CPU ). Dam good chip in its day
@@zx8401ztv the "A" veraion had a faster clock frequency and the internal basic had a few more commands. I still have a 99/4a around here so. Need to make up a power supply some day and see if it still boots.
@@12voltvids before you power it up, check for metal things getting in via an expansion slot. Ive fished out all sorts of crap in stereos and tv sets, There was a vcr with a layer of trill bird seed covering the deck, yes they had a bird but it would have taken ages for the bird to move that much trill. After using a vaccume hose the deck was clean, no damage. A lady lost a pen that had been pushed in the vcr slot, the bad thing is she put her fingers in the slot to recover it.... oh shit! she triggered the carridge and her fingers were trapped. Her daughter tapped on my door in a panic, i bent the carridge up and out came her hand. I did feel sorryfor her. After a careful carridge bend back, no damage, a few spots of blood. People do some silly things.
@@12voltvids I believe a similar edge connector was also used in many classic standup arcade cabinet games boards, and is also now very prone to failure.
I have no doubt machines like this could go on for many more years of enjoyment. As long as caps, resistors and belts are being made, I can't see why. It sure helps when they are used regularly however to keep things turning over.
@@ACommenterOnRU-vid Another interesting aspect now for parts no longer available, the technology for 3 D printing and creating your own parts is opening up. It will be things like VU meters, incandescent globes that may be problematic, but certain transistors especially older units, may be the downfall for a lot of 60's and early 70's units...
I have similar issues with old brittle plastics in Laserdisc players, the old ones are now well past their time, and the lack of new parts makes them beyond economic repair.
I notice you seem to be a fellow flashaholic, with 2 flashlights in frame - plus I've seen some of your flashlight reviews. 🔦 One flashlight I just came across that will replace all my aging little single-10440 lights that I keep everywhere as 'workhorse' lights when I need a quick easy light before I forget what I was looking for, is the Sofirn SC32. I'm going to be getting 5 or 6 more for that purpose... It's a single 18650 light that isn't much bigger than the battery, and has a wonderful EASY-to-press tailcap button. What's more - when set to ramping mode, you can set it to it's 'turbo' brightness, so it'll always come on in turbo for when you need to find something quickly. Also on this light, I notice that you can get more brightness with something like the Samsung 30Q or Molicell 28A batteries - but at the cost of much quicker heating, so you can also decide how hot/bright you want it to get by choosing either lower or higher amperage batteries (in addition to choosing which brightness you want it to memorize on start). It's a wicked-awesome *LITTLE* light, perfect for workhorse duty! You might want to consider having at least one strewn about your workbench, to take up less space than our other more powerful lights. And they're less than $30 each, to boot.
Its the only reliable way to fix them, and its a permanant fix. Sure it makes it harder for the next guy in if he wants to pull the amp out to work on it, but realistically who would do that. I am just waiting for the other show to drop when the card edge connectors fail.
I've made it a habit of replacing those snubber caps on any Sony reel to reels that I repair. I've had two go bang at switch on then sizzle and scare the crap out of me . On the sony's I've worked on they've had two .One at the mains where it switches the mains voltage to what ever your country has and the other at the micro switch. Someone was selling replacements at some stage but they were only rated at 250 to 270 volts (our mains 240Volts ).Not much head room so I did what you did at least they're rated at 650 volts better than the originals .
What realistic economically repairable life span is left on many of these 70s era and older hifi components Dave? Seems like many of the parts are right at the very end of any kind of useable lifespan. There was a lot of hiss/noise in that output too. Sadly way out of original tolerances now. :( Beautiful unit though.
It was hissing due to no connection to the head and as such the gain was up as was the volume on my amp. I doubt it is hissing much more than it did when new. None of these old R-R had a S/N better than about 45db. We were just used to it. Digital recording and the CD with its 100db dynamic range and 100db noise floor came out and spoiled us. Everyone forgot how bad analog recording really was. Otherwise dolby and DBX would have never been invented or needed. As to usable life span, this old junk was ready for the bin 20 years ago, but as long as people want to keep throwing money at fixing this old crap I am fine with that. Now I know I am throwing gasoline on a fire saying that, but its true. The new tech is so much better than old tech. I can't understand why the fad of vinyl is doing as well as it is. Its a good thing too because it has revived service on these old turntables and helped the recording industry with the re-release of records. Not that I will be buying any new vinyl. A CD sure, but not vinyl. I have a little collection of records that I still enjoy, but the sound is pale by comparison to cd.
@@12voltvids lol. Your answer made me laugh. So true. Nostalgia and a visceral touchable connected shareable experience is what’s driving vinyl comeback. People miss being able to physically touch and feel and manipulate actual beautifully made knobs and buttons. The micro digital streaming experience of today sounds better for sure but it is cold and characterless and a selfish lonely pursuit by comparison to a 70s turntable social listening party. You had to work for it, and that’s what made it fun. Vinyl is an experience and you got a wall poster in the sleeve! CD partially so, but great sounding. Streaming, nada. They’ve turned a warm fun social experience into a sterile great sounding meaningless one. Tech has made people lonely disconnected and stuck in their smartphones. :( Personally, being able to spin Pink Floyd on vinyl in front of me at night with the warm glow of the meter lights on the amp, with my vintage crt oscilloscope also plugged into the audio outs, with a great pair of speakers is an experience that cannot be matched by anything from the current era.
That's why they have to go. Often the connectors on the cards break when someone decided to pull the card to change the caps. Unit works before. Recap and they break going back in. Know someone that happened to.
That's a Rifa cap inside the snubber can tell by the transparent case and the color. Those caps use metallized paper for the dielectric which absorbs moisture when the epoxy case cracks. The real funny thing is Kemet (who bought Rifa) still manufactures these pieces of crap saw them on Digkey when looking for replacements. Most RELIABLE film caps use metallized polyester or polypropylene plastic for the dielectric.
@@12voltvids Some might be...Kemet own Rifa and they reproduce the Rifa pmr or pme series cap - it's the transparent metallized film thats tinted a bit yellow.
I used to own this machine; bought it brand new.... it sucked, over priced, crap sync head, expensive SLH tape that killed the heads. But, had fun with it, recorded my band and used it in my first 4 track studio....It got me started on a long journey.
Informative video as usual, Dave. Just be careful playing that song with the girl singing - isn't it royalty free unless played on things like RU-vid? You don't want them robbing you.
@@Markpab i have a license for every track I play. Stuff from music bakery is explicitly clear that it is licensed for use in videos that are published on revenue generating sites such as RU-vid. Fraudsters try to take advantage of the fact that many using music bakery music have not purchased / licensed so when a fraudster makes the claim the person that used it without authorization just let's it go and the fraudster just collects the ad revenue. I dispute every claim. The song smile by candian candence burns was distributed by triple scoop music included with video editing software video studio. Reading their license is not quite as clear like music bakery is. If I ever get a claim on one if these tracks it gets deleted simple as that. With mysicbakery the license is black and white so I dispute and win every time.
@@Markpab the story behind me and mysicbakery goes back to when i was doing corporate videos. Many times the client would being in music they wanted as the bed for their voice overs ect. When the company was small and the average Corp video had perhaps 100 copies done, as these were mostly start up businesses that wanted a promo video on a very small budget and many of these companies didn't even make it. Did one for a company that made a car/boat trailer. You pulled your boat out of the water pressed a button the boat went up in the air and then you could drive your sports car under the boat. Neat idea but I don't know if it ever took off. Anyway one video I shot was heard by someone in the music business and the next thing we knew the record company was wanting to know how many copies and had their hand out for a cheque. I didn't deal with this directly, the client did We had to re-edit the video without music. I started doing research and came across a guy named Jack waldenmaier. His company at the time JWMP jack waldenmaier music productions. Bought a couple of his royalty free smooth jazz CDs for production. My business partner took a listen and went crazy and got a sub to the now named musicbakery. They issued a new CD every month and we ended up with quite a few. I think at the time they were about 100 or 120 per disk but it allowed us to make new videos and not have to worry about calculating royalties and cutting a bunch or cheques. This is all old music as we purchased it all in late 90s and early 2000s. My old business partner passed away in 2006 and that was basically when I folded the company. He sold his share to another guy that started ordering me around like an employee. I collected all my personally owned equipment including the hard drives I owned which all had the musicbakery content and more importantly the license documents that give me the rights to use the content on my youtube videos. It is top shelf production music.
hi have some sony tc 755 i don't like working on them the way they are made i just re cap the transport logic they are 40 years out time i did them i have a teac 44 they are far better decks for parts and to fix
