1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration

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

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

Linear Mode
Rehabing 42-854 AM/SW Portable
Radioroslyn
Phorum Expert
*****
Posts: 7,294
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
#30

05-31-2016, 10:54 PM
This thing wants to fight me tooth and nail. Both audio stages are working but won't pass a rf signal. If I connect the gnd side of the generator to the chassis it modulates everything with 60cy hum. So I rigged up a gimmick cap ( some twisted hookup wire) to feed in a IF signal. Fed the 2nd IF amp tube plate w/ 455 signal and got a little output from the spkr. Tried the grid and get zip. Plate and sg voltages look ok so I guess it's onward to the 1500 ohm #50 filament return resistor. Come to think of it I should double check the filament voltage on the tube too.

Terry
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
Rehabing 42-854 AM/SW Portable - by Radioroslyn - 05-22-2016, 02:08 PM
RE: Rehabing 42-854 - by morzh - 05-22-2016, 02:29 PM
RE: Rehabing 42-854 AM/SW Portable - by sam - 05-23-2016, 02:33 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 05-23-2016, 04:40 PM
RE: Rehabing 42-854 AM/SW Portable - by sam - 05-26-2016, 06:55 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 05-26-2016, 08:06 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 05-26-2016, 08:45 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 05-27-2016, 08:06 AM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 05-27-2016, 11:11 AM
RE: Rehabing 42-854 AM/SW Portable - by sam - 05-27-2016, 11:31 AM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 05-27-2016, 06:44 PM
RE: Rehabing 42-854 AM/SW Portable - by sam - 05-27-2016, 08:21 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 05-27-2016, 08:44 PM
RE: Rehabing 42-854 AM/SW Portable - by sam - 05-30-2016, 07:07 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 05-31-2016, 07:22 PM
RE: Rehabing 42-854 AM/SW Portable - by Radioroslyn - 05-31-2016, 10:54 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 06-01-2016, 08:04 AM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 06-02-2016, 01:19 PM
RE: Rehabing 42-854 AM/SW Portable - by sam - 06-02-2016, 12:05 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 06-02-2016, 07:52 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 06-02-2016, 09:20 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 06-02-2016, 09:58 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 06-04-2016, 02:09 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 06-04-2016, 04:18 PM
RE: Rehabing 42-854 AM/SW Portable - by sam - 06-16-2016, 10:13 PM
RE: Rehabing 42-854 AM/SW Portable - by morzh - 06-17-2016, 10:32 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
An attempt to remove the Field Coil from a G speaker
Hi Morzh, May be a good idea to remove the cone to prevent damage. You may have to do so anyway to remove the pole ...MrFixr55 — 08:44 PM
Philco 91 Restore Code ??
I think that Danaher, the company that owns Beckman-Coulter (the company that I worked for 41 years) owns Fluke. They a...MrFixr55 — 08:35 PM
Philco 91 Restore Code ??
Rod I wish... :lol: I am not sure I'd buy the Fluke, had it not fell in my lap for free. $500 to $800...it's a lot...morzh — 08:09 PM
Philco 91 Restore Code ??
Mike, ...you get a commission?RodB — 07:52 PM
New member
Hi. I specialize in refurbishing Predictas, but I'm in Chicago. If you can get it to me, I'd be happy to go over it. ...Bob Andersen — 06:43 PM
An attempt to remove the Field Coil from a G speaker
I have 3 G speaker, all with open Field coils. Today I pull one of the shelf and decided to try to remove the FC (spo...morzh — 06:07 PM
Philco 91 Restore Code ??
Thanks Mike. I will check them out.dconant — 05:52 PM
Philco 91 Restore Code ??
There is no such thing as bad Fluke. This said, they are expensive. A Fluke is easily 10x the price of comparable CCC...morzh — 05:45 PM
Philco 91 Restore Code ??
Hello Mike, Yes, I have 3 Fluke meters one being my first Fluke 77 and other being Fluke 87. My third is Fluke clamp -...radiorich — 05:04 PM
Philco 91 Restore Code ??
I knew that Fluke was the Cadillac so with that in mind what Fluke would you recommend I get?dconant — 03:53 PM

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

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration