Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Philco 39-7 restore help
#2

First of,

It was not a very good idea to verify the radio workrd without at least electrolytics replace ent.
But now that it went well, good to know.

The power cord can be anything that fits of desirable length. Matter of preference.
If want to be near-authentic, check Tubes and more, Radio Daze.

Transformer wires could be replaced, but many prefer simply sliding heatshrinkable tubing over. Works well.

Volume pot can be opened and lubed/cleaned.
If it fails, Mark Oppat has some or repairs those that could be.

40uF is not a recommended value and could even exceed the allowed one for the rectifier tube (see the datasheet, it always is listed there). It is possible because the other cap also dried up, they compensated this way.
Replace both with the proper values.


Fixing the stud: use an L-bracket and screws/a rivet and a screw.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.


Messages In This Thread
Philco 39-7 restore help - by jkaterenchuk - 05-29-2020, 07:04 AM
RE: Philco 39-7 restore help - by morzh - 05-29-2020, 10:49 AM
RE: Philco 39-7 restore help - by jkaterenchuk - 05-29-2020, 11:31 AM
RE: Philco 39-7 restore help - by Radioroslyn - 05-29-2020, 11:40 AM
RE: Philco 39-7 restore help - by morzh - 05-29-2020, 12:51 PM
RE: Philco 39-7 restore help - by jkaterenchuk - 06-04-2020, 08:22 PM
RE: Philco 39-7 restore help - by morzh - 06-04-2020, 09:21 PM
RE: Philco 39-7 restore help - by Phlogiston - 06-04-2020, 10:26 PM
RE: Philco 39-7 restore help - by jkaterenchuk - 06-07-2020, 04:41 AM
RE: Philco 39-7 restore help - by jkaterenchuk - 06-18-2020, 06:26 AM
RE: Philco 39-7 restore help - by Radioroslyn - 06-18-2020, 10:58 AM
RE: Philco 39-7 restore help - by jkaterenchuk - 06-23-2020, 08:44 AM
RE: Philco 39-7 restore help - by Radioroslyn - 06-23-2020, 04:09 PM
RE: Philco 39-7 restore help - by rfeenstra - 06-23-2020, 09:20 PM
RE: Philco 39-7 restore help - by jkaterenchuk - 06-27-2020, 08:48 PM
RE: Philco 39-7 restore help - by rfeenstra - 06-27-2020, 09:12 PM
RE: Philco 39-7 restore help - by RodB - 06-27-2020, 09:20 PM
RE: Philco 39-7 restore help - by Radioroslyn - 06-27-2020, 09:24 PM
RE: Philco 39-7 restore help - by jkaterenchuk - 06-28-2020, 05:46 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Cannot Adjust an IF Transformer’s cores
Outstanding work indeed. I wish I could come up with solutions like this.slford310 — 11:16 PM
Cannot Adjust an IF Transformer’s cores
The abilities of our 'Phorum Pholks" never ceases to amaze me! Fantastic fabrication, Joseph! I'm waiting now for...GarySP — 08:27 PM
PT-6 antenna connections
Thanks. I never realized that was a notch noted in the schematic as described. I’ll recheck my wiring.bridkarl — 08:13 PM
Cannot Adjust an IF Transformer’s cores
Thank you! I was quite new to the Phorum when I started this post, so I feel like it might be advantageous to publish a ...jrblasde — 08:07 PM
PT-6 antenna connections
Notice in the schematic the notch at the bottom of the antenna coil is between pins 3 & 4. Yes, pin 6 of the 7C6 is...RodB — 07:34 PM
bridkarl
I have two PT-6 chassis. On both there is a blue wire that runs from the above chassis transformer to pin 6 of 7C6. So t...bridkarl — 07:23 PM
Cannot Adjust an IF Transformer’s cores
Joseph, now you are an engineer!!RodB — 06:37 PM
PT-6 antenna connections
Hi, reading your explanation I can see the confusion. If you take it one connection at a time it should result in a desi...RodB — 06:34 PM
Cannot Adjust an IF Transformer’s cores
It works! I received the PCBs this morning in the mail, and put everything together. I reused the base from the original...jrblasde — 04:32 PM
PT-6 antenna connections
I seem to have lost my way on this PT-6. I see the antenna aerial transformer schematic - I’m reading pins 1 through ...bridkarl — 12:30 PM

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

>