1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
philco 37-620 code 125
MarkinK-zoo
Junior Member
**
Posts: 15
Threads: 3
Joined: Feb 2020
City: KALAMAZOO State, Province, Country: MI
#11

02-03-2020, 12:12 PM
I have read about by-passing defective IF stages using a capacitor to connect the plate of one tube to the grid of the next and by-passing the open winding with a resistor. Would this work for an RF stage? There would be some loss of performance I would assume, but it would be way better than what I have now. Can this done? Mark
Find
« Next Oldest | Next Newest »


Messages In This Thread
philco 37-620 code 125 - by MarkinK-zoo - 02-01-2020, 08:39 PM
RE: philco 37-620 code 125 - by klondike98 - 02-02-2020, 01:30 PM
RE: philco 37-620 code 125 - by Chas - 02-02-2020, 03:07 PM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-02-2020, 05:07 PM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-03-2020, 11:10 AM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-03-2020, 11:20 AM
RE: philco 37-620 code 125 - by Chas - 02-03-2020, 11:46 AM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-03-2020, 11:57 AM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-03-2020, 11:58 AM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-03-2020, 12:12 PM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-03-2020, 03:52 PM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-03-2020, 04:09 PM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-04-2020, 06:36 PM
RE: philco 37-620 code 125 - by harley92 - 02-06-2020, 09:28 PM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-08-2020, 12:00 PM
RE: philco 37-620 code 125 - by MarkinK-zoo - 02-17-2020, 03:17 PM
RE: philco 37-620 code 125 - by harley92 - 02-17-2020, 08:56 PM
RE: philco 37-620 code 125 - by harley92 - 02-17-2020, 09:00 PM
RE: philco 37-620 code 125 - by harley92 - 02-17-2020, 11:53 PM



Users browsing this thread: 5 Guest(s)
[-]
Recent Posts
Philco 42-1008 conversion kit
I read about a kit to convert the variable speed changer in the Philco 42-1008 into a single speed unit.  That would rem...alangard — 09:30 PM
HiFi (Chifi) tube amp build - but my own design.
Tim Well...a chassis is metal. Magnetic or not, it does not matter. A transformer has some hum to it. It is natural....morzh — 08:40 PM
Shadow Meter Bulb
Ross I am not sure what current limiting effect the incandescent provides. They are two different parts of the sch...morzh — 08:31 PM
12' Philco
Bob Thanks for that photo. I have been looking for it, and I cannot find anythinmg on the web. I forgot it was here...morzh — 08:29 PM
Shadow Meter Bulb
I think after all has been said, I will use the same bulb that is specified for the dial pilot light which is a #55. I ...georgetownjohn — 07:31 PM
12' Philco
There was also this Philco! klondike98 — 07:25 PM
HiFi (Chifi) tube amp build - but my own design.
I expected a challenge and this is just part of it. But, it's also supposed to be fun, entertaining, informative and enj...TV MAN — 07:12 PM
Shadow Meter Bulb
Butting in here with a question. Since the shadow meter is connected directly to the 1st and 2nd I.F.'s wouldn't the met...RossH — 06:43 PM
HiFi (Chifi) tube amp build - but my own design.
Mike, Tim; you are about to enter the twilight zone. Doo doo doo doo, doo doo doo doo This is something alright. I'm go...RodB — 06:26 PM
HiFi (Chifi) tube amp build - but my own design.
:lol: We need to start a singing radio group! I play the guitar, so maybe get a few vocals? Anyways, Mike, I did try mou...TV MAN — 05:56 PM

[-]
Who's Online
There are currently 6554 online users. [Complete List]
» 1 Member(s) | 6553 Guest(s)
Avatar

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