Very rare Sovjet color tv set Rubin 401

[radiotvnut]

The problem with a lot of vintage 32 volt equipment is that it had a normal AC plug. I've got a mid '30's Philco tombstone that is 32VDC and it is obvious that someone plugged it into 120VAC.

From what I've heard, there were still rural areas in this part of the US that didn't have electric lines as late as the early to mid '50's.

[yagosaga]

A short briefing of the current project. Here is a list of the registered faults in the Rubin color tv set:

- Line output tube, filaments did not light up (fixed)
- E.H.T. coil on L.O.P.T. was running hot (fixed)
- Vertical frequency too low (fixed)
- Strong vertical linearity faults (fixed)
- Missing sound
- Missing video (Y) signal (fixed)
- Faulty A.G.C.
- Faulty I.F. curve
- Some faults in the SECAM FM decoder and matrix unit
- Faulty tuner.

After a lot of work, the Rubin displays a first color picture, see test pattern in the attachment. The photo was taken from the mirror, so it is side reversed.

Schematics added.

Kind regards,
Eckhard

[old_tv_nut]

Thanks Eckhard, great to see how it progresses.