Quote:
Originally Posted by vortalexfan
Yes, my TV has the 2 tube tuner in it.
Although I don't have any 6AG5 tubes so I subbed it out with a 6AK5 tube.
I'm assuming I can take the voltage measurements through the top of the tuner's tube sockets with the tubes removed?
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No the tubes definitely need to be installed, so I suppose that's going to be difficult unless you have one of the test socket adapters. You might be able to push the pins only partially in the socket and probe the sides of them. Maybe Old Coot will have a better idea on where to go next. I was going to suggest that you check for change in AGC voltage when you connect your signal source to the antenna input vs no signal, if so that would indicate that signal is getting though the tuner and video IF and at least as far as the detector. AGC voltage should go more negative with stronger signal. Great to hear the HV rectifier solved your brightness issue.
