slyvania roundie

[DaveWM]

well I did a few more tube swaps, figured it could not hurt (famous last words). this time IF tubes, I had some NOS the last one was brand new and shorted, oh well I got it out before it did any damage. At least the AGC issue seems working somewhat again (do not need to flip the channel selector).

I realize IF tube swaps "could" mess up the alignment due to gain differences but then again I figure if things got bad I would just put the old ones back in.

Also the line pairing seems less. hard to say as it largely depends on the screen content as to how well I can pick it up.

Anyway time for a break again, will let everything cool done and will check again.

Oh and checking the video feed to the AGC, it was much lower than what sams said, so more cheking and I find the outpuf from the video detector to be about 5v PP sams says it should be 15 (this is at the grid of the 1st video).

So before I go nutz I check it to my CTC-16 hmm say PP, so not sure if the IF tubes were all just weak (this was done before the swap) on both the sylvania and the RCA or if the Sams is just wrong, 15v seems like a lot at the video detector output.

Anyhow I am chipping away at it. I sure am glad I dont get paid to do this, considering how many hours I fiddle away, I would never have a customer willing to pay. I really just dont know how TV guys back in the day made money. Of course with time I guess I would get better at diagnostics and not spend so much time second guessing and wonder what looks 'right".