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tried subbing a sync sep tube (6gh8) no real improvement, so I decided to pull the chassis. 1st order of bus is to pull the speaker under the tuner/control cluster, then pull the cluster (after the confusing way its mounted using the pot shafts as mount screws. Of course all the strain reliefs were broken, no big, and of course the prior tech did not bother to replace the tuner cover (was this common practice?) perhaps due to the difficulting in removeing the tuner it was decided it just did not need a cover....
moving on to the chassis, one screw that was just barely in just a couple of turns and the chassis was loose (thanks again mister tech).
I finally get the chassis out, nice, a alligator clip wire is soldered to the center post of the video amp and burst amp tube sockets, and then the clip is on the chassis, sweet...
My guess is there was a bad ground connection maybe even a broken pcb and this was the fix. He should have at least soldered the dumb thing oh and the wire was not covered all the way with insulation, looks like a splice was done and not covered, no evidence of any electrical tape or anything. lord what a hack.
This tube socket on the bottom looks a bit funky, not sure if there was a replacement done and poor solder job or what. May account for the impromtu ground.
other than that it looks pretty original. I will see if I can clean up the sockets, reflow some solder and may as well do a better job of what ever that ground wire was all about, not to mention reflowing the solder stakes.
I have some strain reliefs so will button that up. I could not find the mounting point anywhere on the chassis for the tuner cluster.
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