Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x


Philco 39-7 issues
#14

Hi Jeff - I highly recommend that you not power up the radio until cap 26 is rewired. As MrFixr stated cap 26 is not supposed to be grounded. The schematic shows the center tap of the power transformer connected to resistor 24 as the point where the negative of cap 26 should be connected. This is probably a terminal near resistor 24. This terminal should measure about 300 ohms to chassis ground.


Messages In This Thread
Philco 39-7 issues - by Jeff Lepore - 02-19-2026, 12:02 PM
RE: Philco 39-7 issues - by morzh - 02-19-2026, 12:56 PM
RE: Philco 39-7 issues - by MrFixr55 - 02-19-2026, 04:06 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-19-2026, 07:05 PM
RE: Philco 39-7 issues - by Joe Rossi - 02-19-2026, 08:37 PM
RE: Philco 39-7 issues - by morzh - 02-19-2026, 09:35 PM
RE: Philco 39-7 issues - by MrFixr55 - 02-20-2026, 10:25 AM
RE: Philco 39-7 issues - by Jeff Lepore - 02-20-2026, 04:39 PM
RE: Philco 39-7 issues - by morzh - 02-20-2026, 04:49 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-20-2026, 05:53 PM
RE: Philco 39-7 issues - by morzh - 02-20-2026, 10:22 PM
RE: Philco 39-7 issues - by MrFixr55 - 02-21-2026, 09:46 AM
RE: Philco 39-7 issues - by Jeff Lepore - 02-21-2026, 11:21 AM
RE: Philco 39-7 issues - by RodB - 02-21-2026, 12:18 PM
RE: Philco 39-7 issues - by morzh - 02-21-2026, 12:37 PM
RE: Philco 39-7 issues - by MrFixr55 - 02-21-2026, 02:09 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-21-2026, 06:48 PM
RE: Philco 39-7 issues - by morzh - 02-21-2026, 07:13 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-21-2026, 09:25 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-21-2026, 09:51 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-21-2026, 10:57 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-22-2026, 10:22 AM
RE: Philco 39-7 issues - by MrFixr55 - 02-22-2026, 10:49 AM
RE: Philco 39-7 issues - by RodB - 02-22-2026, 11:28 AM
RE: Philco 39-7 issues - by morzh - 02-22-2026, 02:02 PM
RE: Philco 39-7 issues - by RodB - 02-22-2026, 02:49 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-22-2026, 07:03 PM
RE: Philco 39-7 issues - by morzh - 02-22-2026, 07:26 PM
RE: Philco 39-7 issues - by morzh - 02-22-2026, 07:31 PM
RE: Philco 39-7 issues - by RodB - 02-22-2026, 09:07 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-23-2026, 06:54 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-24-2026, 07:32 PM
RE: Philco 39-7 issues - by morzh - 02-24-2026, 08:35 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-25-2026, 12:44 PM
RE: Philco 39-7 issues - by morzh - 02-25-2026, 02:18 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-25-2026, 06:34 PM
RE: Philco 39-7 issues - by morzh - 02-25-2026, 09:08 PM
RE: Philco 39-7 issues - by MrFixr55 - 02-25-2026, 09:31 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-26-2026, 12:45 PM
RE: Philco 39-7 issues - by MrFixr55 - 02-26-2026, 03:02 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-26-2026, 03:24 PM
RE: Philco 39-7 issues - by morzh - 02-26-2026, 03:50 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-26-2026, 06:25 PM
RE: Philco 39-7 issues - by morzh - 02-26-2026, 09:50 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-26-2026, 10:36 PM
RE: Philco 39-7 issues - by morzh - 02-26-2026, 10:49 PM
RE: Philco 39-7 issues - by Jeff Lepore - 02-28-2026, 12:34 PM
RE: Philco 39-7 issues - by morzh - 02-28-2026, 02:21 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
under chassis parts locator diagram for 1938 Zenith 9s262
Has anyone gone to the trouble of creating an under chassis parts locator image?  Yes, I can identify components by foll...bobloney — 08:57 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Try looking at this site the book mark is for a old generator that I was given. David    https://radionerds.com/index.ph...David — 08:36 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Hello Everyone, I am looking for voltage identification for all the pin positions on the socket of a CRV-20130 power su...Tonym4704 — 08:16 PM
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM

[-]
Who's Online
There are currently 1947 online users. [Complete List]
» 1 Member(s) | 1946 Guest(s)
Avatar

>