Rca ctc-5

[Charlie]

Yeah that yoke plastic sucks, doesn't it?! I've got a few sets that have that issue... or simply a lack of plastic to hold it all together in there. I notice that Motorolas of that time period seem to always have this issue (as well as Motorola knobs).

Bob has section covering this on his site at http://antiquetvguy.com/Web%20Pages/...okeCovers.html

[DaveWM]

all tubes checked on the chassis, did not check the tuner tubes, and did not replace any paper caps on the tuner (I think there is one). So hopefully I will be able to do that tomorrow, then maybe Sat I can give it a try

I replaced the one 6EA8 with the slight short and a 6LF8 that was shorted a bit harder.

[DaveWM]

got raster, then pic and audio, but the pic looks like its got an agc issue or a sync sep issue, (vert and horz sync are soft). HV is right around 20kv but that is thru a 100ft cord AND a isolation trans that can barely handle 3amps, so I am hoping at full line voltage it will be up a bit. I did not see if the HV adj did anything. the tuner has a paper cap so maybe that is an issue, I presume its an AGC filter cap. I will start by replacing that. I did not fiddle with the AGC pot so of course that could be it as well. If neither of those work out I will try a composite video feed. I need to back and review the AGC setup.

Its coming along...

[DaveWM]

hmmm I seem to recall cleaning the pots up front, so I bet I just need to reset the noise/agc, but too tired to fool with it any more, so back on it tomorrow.

[DaveWM]

AGC pot has no effect what so ever. So I think I will start with a simple AGC bias and see if that clears it up. If so I will dig into the AGC circuit. I just hope its not a feed back pulse from the fly back that is missing.

[DaveWM]

Even though the bias did not seem to work I still think its got to be in the AGC circuit, just cause the agc pot did nothing. But will get the scope out and look around. will start at the plate of the AGC tube looking for the keying pulse. Will also look to see what the signal to the sync sep looks like going in and coming out. I suppose the smart thing would be to try new tubes there 1st.