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RE: TC-770

1.43.172.93

In Reply to: RE: TC-770 posted by Victor Khomenko on December 26, 2019 at 12:43:01

Hello again Victor,
With regards to battery replacement, if you are anything like me and are drowning in ocean of AA NiMH batteries, you can buy very cheap adapters to C and D size. The Ds can hold 3 AAs, so are usefully more powerful than the expensive and relatively gutless NiCad D size available these days. The 510/5550 holds 8 D type btw
You have motivated me to have another look at my TC 510-2. Would you believe the original NiCad battery pack accepted a charge?! I now see that my functional issues are probably self inflicted. Before I got the NiCad pack, I just used a 12v D.C. power source using the connector. I assumed (!!) centre pin hot, but no, it appears the sleeve is positive when I measure with battery pack installed. Hopefully I've just burnt a resistor. So, bear that in mind when yours arrives!
Regards,
Phil

Edits: 12/26/19

Follow Ups:

Bummer! Them Japanese! - Victor Khomenko 18:37:19 12/26/19 (3)
It was not enough for them to throw us off by making XLR pin 3 hot, they also made the power plug pin negative!
Fortunately, I saw the guy mentioned this fact in his video, so I was already prepared!
Now, it all depends on how smart they were. Sometimes people put in the reverse polarity protection, so let's hope it is there, and your unit comes back to life, so you and I could share stories!
Regarding the batteries in TC-770 - I already bought some C cells. They actually have two separate sections in there: one with 6 cells, and one with 8. One supplies the power to the drive, the other - to electronics.
Here it is playing after the minor service:
- TC-770 Playing (Open in New Window)
Edits: 12/26/19 12/27/19 12/27/19 12/27/19
- Somewhat better video... I hope... - Victor Khomenko 10:31:20 12/28/19 (0)
  Nice to see how well this music goes with the fast spinning right reel.
  - Different song (Open in New Window)
- RE: Bummer! Them Japanese! - tygersmoke 14:43:06 12/27/19 (1)
  I have an Accuphase preamplifier that has been playing out of phase for years due to my laziness, but it still sounds great; doesn't blow up either!
  
  That TC-770 is in great nick! It's a bit of a misnomer for Sony have called to call them 'portable', though we're probably spoilt these days. Ave Atque Vale, Leonard Cohen...
  - RE: Bummer! Them Japanese! - Victor Khomenko 18:38:54 12/27/19 (0)
    It was not a truly portable portable, more of a on location recording machine. So they created the TC-510 as a somewhat more portable model.
    But don't underestimate the Germans - their Uher 4400 Monitor is the pinnacle of portability... before the cassettes came along. Amazingly, it manages to fit in two 5" reels under that cover.
    
    Edits: 12/27/19

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