Bakelite Block 3903N - Printable Version
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Bakelite Block 3903N - 1MohrRadio - 04-05-2021
I am working on a Philco 52b and it uses Bakelite block 3903 N. I have looked at the reference page on the Wayback machine and it shows its as having lugs 3,5, and 8. So far so good mine does too. Then is shows the .01 ufd condenser is connected to lugs 5 & 8. Close examination of mine before unstuffing reveals wires coming out of the inside and attaching to all 3 lugs.
Does anybody have a copy of Ray Bintliff's book to help identify what is the correct configeration?
Thanks,
PS. I am definitely going to buy a copy of his book if I can find one.
RE: Bakelite Block 3903N - Radioroslyn - 04-05-2021
https://philcoradio.com/library/index.php/parts/bakelite-block-condensers/
RE: Bakelite Block 3903N - 1MohrRadio - 04-05-2021
Thank you Terry but that doesn't add any additional information. I am hoping to find a diagram that will clear up the connection mystery.
RE: Bakelite Block 3903N - Radioroslyn - 04-05-2021
There's also clues if you look at under the chassis layout vs the schematic.
RE: Bakelite Block 3903N - 1MohrRadio - 04-05-2021
You're right. It looks like lug 3 should just be a support but the work by a previous technician has made a mess of this area. I think I remove the insides more carefully than usual in hope of being able figure it out.
RE: Bakelite Block 3903N - radiohenry - 04-05-2021
Here it is from Ray's book. Sorry about the size.
Henry
RE: Bakelite Block 3903N - 1MohrRadio - 04-05-2021
Much appreciated, radiohenry. This gives me a much greater confidence in the correct confiuration. I have ordered my copy of this valuable reference. I don't know what has taken me so long.
Thanks again,
Dwayne