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Philco 37-84
#4


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
*********************
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


Messages In This Thread
Philco 37-84 - by Art Hoch - 03-23-2012, 10:04 PM
RE: Philco 37-84 - by 7estatdef - 03-23-2012, 10:26 PM
RE: Philco 37-84 - by AI2V - 03-27-2012, 02:10 PM
RE: Philco 37-84 - by Art Hoch - 03-27-2012, 07:06 PM
RE: Philco 37-84 - by codefox1 - 03-27-2012, 07:54 PM
RE: Philco 37-84 - by tab10672 - 03-27-2012, 10:31 PM
RE: Philco 37-84 - by Art Hoch - 03-28-2012, 07:39 PM
RE: Philco 37-84 - by Art Hoch - 03-29-2012, 05:41 PM
RE: Philco 37-84 - by 7estatdef - 03-29-2012, 06:10 PM
RE: Philco 37-84 - by Art Hoch - 04-13-2012, 11:42 AM
RE: Philco 37-84 - by Art Hoch - 04-23-2012, 10:11 PM



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