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

Thread Closed

Philco 37-89 Ist IF
#1

Hello, Working on a Philco 37-89. I needed to take out the 1st IF because 2 wires were falling apart. The schematic (Riders 7-29) shows only 4 wires. The black wires in the picture are the ones with bad insulation. They are not on the schematic. One wire goes to pin 5 of the 6K7 (IF) tube and the other goes to ground. There is no other wire connected to pin 5 but the schematic shows pin 5 going to ground. I ohm out the black wires and I get about .3 ohm. It looks to me like the black wires are wrapped around the core abut 2 times. Any idea what this is for? It is going to be tricky getting new wires on there. Looks like I will just splice as far in as I can. There is nothing like that on the 2nd IF.


Attached Files Image(s)
   


Messages In This Thread
Philco 37-89 Ist IF - by dconant - 04-30-2024, 05:40 PM
RE: Philco 37-89 Ist IF - by Radioroslyn - 04-30-2024, 09:07 PM
RE: Philco 37-89 Ist IF - by dconant - 05-01-2024, 08:08 AM
RE: Philco 37-89 Ist IF - by Radioroslyn - 05-01-2024, 09:25 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
That looks a lot like an aircraft connector of some kind, even if it's a U.S.N power supply. I have a book somewhere abo...Arran — 02:56 AM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
hello david, I have a similar generator in my collection that features a cast iron, single-cylinder Briggs & Stratt...radiorich — 01:00 AM
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

[-]
Who's Online
There are currently no members online.

>