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

Thread Closed

Please help with the Philco 71B, my first time trouble shooting.
#5

Well I know that I am not missing a coil. At first, right after restoration, I was able to pick up several stations that would come in, then they would disappear and then come back in again. When I put my finger on the grid cap of the 36 tube (Det. Osc.) stations would come in loud and clear. Now if I put my finger on that very same place I don't get anything. The radio only produces a bunch of loud crackles and pops. If I put my finger over the R.F. grid cap or I.F. I don't get anything were'as right after restoration I was able to pick up stations when doing such a gesture.

I also tested the 1st I.F. Transformer coil and here is what I got.

If any of you have worked on a 71 and can help me out that would be great. I have done everything I know how to, and that is not a lot for being an amateur restorer.

Here is a schematic off Nostalgia air. Hope it helps. Thank you all for the help.

http://www.nostalgiaair.org/Resources/646/M0029646.htm

Jon


Attached Files Image(s)
   





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 2212 online users. [Complete List]
» 2 Member(s) | 2210 Guest(s)
AvatarAvatar

>