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

Linear Mode
38-690 Code 125
RGK20m3
Member
***
Posts: 62
Threads: 5
Joined: Apr 2021
City: CLARKSTON State, Province, Country: MI
#44

01-02-2022, 06:05 PM
New issue- magnetic tuning doesn’t seem to work at all. Going through the adjustment procedure 85B(hex), 85A, and 77 seem to have zero affect. I have already checked the on/off switch and the speed tuning switches and they work correctly. Replaced paper caps and checked all resistor values (except 20k, as that has the coil in parallel). I tried adjusting trimmer 85A every 1/4 turn of 85B throughout it’s range....any suggestions on how to diagnose this?
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
38-690 Code 125 - by RGK20m3 - 11-24-2021, 08:26 PM
RE: 38-690 Code 125 - by klondike98 - 11-24-2021, 09:01 PM
RE: 38-690 Code 125 - by RGK20m3 - 11-26-2021, 05:41 PM
RE: 38-690 Code 125 - by klondike98 - 11-26-2021, 06:21 PM
RE: 38-690 Code 125 - by RGK20m3 - 11-26-2021, 10:29 PM
RE: 38-690 Code 125 - by RGK20m3 - 12-02-2021, 07:35 PM
RE: 38-690 Code 125 - by morzh - 12-02-2021, 08:09 PM
RE: 38-690 Code 125 - by Ron Ramirez - 12-02-2021, 08:58 PM
RE: 38-690 Code 125 - by morzh - 12-02-2021, 09:02 PM
RE: 38-690 Code 125 - by radiorich - 12-02-2021, 10:01 PM
RE: 38-690 Code 125 - by Ron Ramirez - 12-02-2021, 11:41 PM
RGK20m3 - by RGK20m3 - 12-05-2021, 06:03 PM
RE: 38-690 Code 125 - by David - 12-05-2021, 07:19 PM
RE: 38-690 Code 125 - by klondike98 - 12-09-2021, 08:08 PM
RGK20m3 - by RGK20m3 - 12-10-2021, 02:54 PM
RE: 38-690 Code 125 - by Mondial - 12-10-2021, 06:42 PM
RE: 38-690 Code 125 - by RGK20m3 - 12-10-2021, 07:15 PM
RE: 38-690 Code 125 - by morzh - 12-10-2021, 07:27 PM
RE: 38-690 Code 125 - by Mondial - 12-10-2021, 07:40 PM
RE: 38-690 Code 125 - by mikethedruid - 12-10-2021, 08:01 PM
RGK20m3 - by RGK20m3 - 12-10-2021, 10:09 PM
RGK20m3 - by RGK20m3 - 12-11-2021, 12:14 PM
RE: 38-690 Code 125 - by Mondial - 12-11-2021, 01:58 PM
RGK20m3 - by RGK20m3 - 12-11-2021, 05:41 PM
RE: 38-690 Code 125 - by Mondial - 12-11-2021, 06:48 PM
RE: 38-690 Code 125 - by tbone - 12-12-2021, 02:27 PM
RGK20m3 - by RGK20m3 - 12-13-2021, 08:24 PM
RE: 38-690 Code 125 - by Mondial - 12-14-2021, 10:22 AM
RE: 38-690 Code 125 - by morzh - 12-14-2021, 12:40 PM
RE: 38-690 Code 125 - by Ron Ramirez - 12-14-2021, 01:40 PM
RE: 38-690 Code 125 - by RGK20m3 - 12-14-2021, 03:25 PM
RE: 38-690 Code 125 - by morzh - 12-14-2021, 03:35 PM
RE: 38-690 Code 125 - by Mondial - 12-14-2021, 04:06 PM
RE: 38-690 Code 125 - by Ron Ramirez - 12-14-2021, 04:42 PM
RGK20m3 - by RGK20m3 - 12-14-2021, 10:32 PM
RE: 38-690 Code 125 - by Ron Ramirez - 12-14-2021, 10:58 PM
RGK20m3 - by RGK20m3 - 12-15-2021, 09:01 AM
RGK20m3 - by RGK20m3 - 12-15-2021, 11:55 AM
RE: 38-690 Code 125 - by Mondial - 12-15-2021, 03:02 PM
RGK20m3 - by RGK20m3 - 12-15-2021, 05:14 PM
RE: 38-690 Code 125 - by RGK20m3 - 01-02-2022, 06:05 PM
RE: 38-690 Code 125 - by Greg - 01-02-2022, 06:42 PM
RE: 38-690 Code 125 - by Mondial - 01-02-2022, 07:59 PM
RGK20m3 - by RGK20m3 - 01-03-2022, 12:36 PM
RE: 38-690 Code 125 - by Mondial - 01-03-2022, 01:43 PM
RGK20m3 - by RGK20m3 - 01-04-2022, 09:12 AM
RE: 38-690 Code 125 - by Mondial - 01-04-2022, 12:21 PM
RE: 38-690 Code 125 - by RGK20m3 - 01-04-2022, 07:01 PM
RGK20m3 - by RGK20m3 - 01-05-2022, 12:36 PM
RE: 38-690 Code 125 - by Mondial - 01-05-2022, 01:56 PM
RGK20m3 - by RGK20m3 - 01-05-2022, 02:57 PM
RE: 38-690 Code 125 - by Mondial - 01-05-2022, 05:59 PM
RGK20m3 - by RGK20m3 - 01-06-2022, 07:39 PM
RE: 38-690 Code 125 - by Mondial - 01-07-2022, 11:44 AM
RE: 38-690 Code 125 - by RGK20m3 - 01-07-2022, 01:03 PM
RGK20m3 - by RGK20m3 - 01-07-2022, 01:32 PM
RE: 38-690 Code 125 - by Mondial - 01-07-2022, 01:49 PM
RGK20m3 - by RGK20m3 - 01-07-2022, 02:31 PM
RGK20m3 - by RGK20m3 - 01-29-2022, 01:25 PM
RE: 38-690 Code 125 - by Brad Winder - 02-02-2022, 08:30 PM
RGK20m3 - by RGK20m3 - 02-04-2022, 07:41 PM
RE: 38-690 Code 125 - by Brad Winder - 02-06-2022, 02:53 PM
RE: 38-690 Code 125 - by RGK20m3 - 02-07-2022, 11:26 AM
38-690 RF Alignment - by RGK20m3 - 12-09-2021, 02:54 PM
RE: 38-690 RF Alignment - by morzh - 12-09-2021, 04:16 PM
RE: 38-690 RF Alignment - by RGK20m3 - 12-09-2021, 04:40 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Need to purchase some accessories for restoration of my Old Philco Radio
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM
First Radio restoration
Hi Tubeman, Welcome to the Philco Phorum.  Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM
First Radio restoration
You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM
Zenith H725
Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately. More ...EdHolland — 10:18 AM
Graphics for majestic 1050 dial glass.
Murf; I found this thread on the ARF, the first photo has a pretty good view of the dial glass. Regards ArranArran — 01:12 AM
Zenith H725
hello Ed, how about that speacial tape used for ducting it's like foil or how about thin piece of aluminum roof flash...radiorich — 12:19 AM
Zenith H725
Ed; One material that I have seen, but never tried for this was material for making exhaust gaskets, it's similar to ...Arran — 11:42 PM
Zenith H725
I just remembered, I have some hi temp silicone rubber material which could do the trick. Or a piece of FR4 laminate. Th...EdHolland — 08:39 PM
Zenith H725
The PSU filter cap arrived today (thank you USPS!) so I will work on that later. Meanwhile, I have the dial, speaker...EdHolland — 06:42 PM
Philco 610B oscillator wiring
Thanks Terry. After checking my notes I think I recorded about -10v at the 6A7 G4/control grid. The screen grid (G3 &...Tubester — 05:59 PM

[-]
Who's Online
There are currently 2605 online users. [Complete List]
» 2 Member(s) | 2603 Guest(s)
AvatarAvatar

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