03-27-2012, 07:54 PM
Do you or any friends have a scope? With it you can quickly see if the oscillator is working.
It's very important to measure the plate and screen voltages before you do anything.
Pete
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No, no scope.
I have already removed two (not simultaneously) of the capacitor blocks filled with tar and am soldering back the connections on the second one (7625SU). Kind of messy because even though I have read how to the the tar out "easily," (http://www.philcorepairbench.com/capbuild.htm), (step 4--fig.4) is not working for me, and I have had to melt the tar to empty the block.
Along the way, I found resistor 22 listed in the parts list with a value of 24K but in the schematic it is 240K. And to beat that, the resistor in the radio actually was a 420K which tested @ 393K. So I have a conundrum: which should it be????????????????
Art
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Please post schematic or post to schematic. Probably you can answer your own question.
