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Philco 38-7
PhilcoPhan1936
Jeff W.
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Posts: 751
Threads: 91
Joined: Nov 2015
City: Jonesboro State, Province, Country: AR
#15

08-14-2018, 04:17 AM
(08-13-2018, 06:55 PM)Radioroslyn Wrote:  Next step is to inject a 470kc signal thru a blocking cap connected to pin 3 of the 6k7.
If nothing heard inject an audio signal to pin 5 of the  6J5 with the tube removed. If
nothing heard you got something miss wired between the 6J5 and the vol cntrl.

Went over the radio and schematic with a fine tooth comb. Couldn't find and mis-wirings. Still no signal or audio on your recommended tests. I connected my iPad using a .1uF cap in line with the tip connector, and the ground hooked to the chassis. This radio is deaf as a post.
Would a bad 6K5G prevent any audio from getting through? It does check out, but it is a bit low, though not excessively.
Would part 29, the audio muting switch be a possible problem? I'm assuming having the switch closed would conduct the audio. If there was a problem with it, is there a way to remove it by rewiring or just disconnecting it?
Blessings,
Jeff W.
Jonesboro, Arkansas

http://jeffsradios.weebly.com

God loves you as you are, not as you should be, because none of us are as we should be. - Brennan Manning
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Messages In This Thread
Philco 38-7 - by PhilcoPhan1936 - 08-09-2018, 02:50 PM
RE: Philco 38-7 - by Olskuul - 08-09-2018, 05:10 PM
RE: Philco 38-7 - by Radioroslyn - 08-09-2018, 06:08 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-09-2018, 09:47 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-10-2018, 05:40 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-10-2018, 06:09 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-13-2018, 05:03 PM
RE: Philco 38-7 - by Radioroslyn - 08-13-2018, 05:30 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-13-2018, 05:48 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-13-2018, 06:11 PM
RE: Philco 38-7 - by Radioroslyn - 08-13-2018, 06:55 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-13-2018, 07:23 PM
RE: Philco 38-7 - by Radioroslyn - 08-13-2018, 09:22 PM
RE: Philco 38-7 - by Arran - 08-13-2018, 09:38 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-14-2018, 04:17 AM
RE: Philco 38-7 - by Ron Ramirez - 08-14-2018, 06:25 AM
RE: Philco 38-7 - by Radioroslyn - 08-14-2018, 08:28 AM
RE: Philco 38-7 - by cpollock - 08-14-2018, 12:30 PM
RE: Philco 38-7 - by Radioroslyn - 08-14-2018, 01:01 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-14-2018, 04:35 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-14-2018, 05:40 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-14-2018, 10:49 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-27-2018, 03:34 AM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-27-2018, 07:54 PM



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