Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Fairbanks Morse model 91
#18

Murf, sorry I was thinking and writing while you were. It is time to look at what you have and wire it to the schematic. The two positives together on the cardboard (replacement) is wrong. Why will it work,well these old radios could handle a lot of variations in values in certain areas. Not right but workable. What I would do would be to restuff or cut off the leads and add the necessary caps. For me I would find from someone a metal cap for the cardboard one and restuff it. I don't believe it is original but that is the hard road to travel. Many will install caps underneath on terminal strips. Just fine.
We all do things differently and all are OK for how the radio works. This one is just messed up a bit. You also need to find what and where the 4mfd can cap with no wire has had something put in to replace it. This is what makes undoing someone else's work a bit fun and frustrating. As you can see that cardboard cap is just not wired properly, needs to be replaced with proper wiring as indicated several threads above and the schematic. You also need to search and find out where that "100mfd" cap is wired in. We know it is not a 100. Perhaps you "100" is the other cap, the 16 or the other?
Jerry

A friend in need is a pest!  Bill Slee ca 1970.


Messages In This Thread
Fairbanks Morse model 91 - by murf - 09-18-2013, 10:00 PM
RE: Faibanks Morse model 91 - by jerryhawthorne - 09-18-2013, 10:37 PM
RE: Faibanks Morse model 91 - by Radioroslyn - 09-18-2013, 11:29 PM
RE: Faibanks Morse model 91 - by Jayce - 09-18-2013, 11:39 PM
RE: Faibanks Morse model 91 - by murf - 09-19-2013, 06:53 AM
RE: Faibanks Morse model 91 - by morzh - 09-19-2013, 09:56 AM
RE: Faibanks Morse model 91 - by murf - 09-21-2013, 01:48 PM
RE: Faibanks Morse model 91 - by jerryhawthorne - 09-21-2013, 02:20 PM
RE: Faibanks Morse model 91 - by murf - 09-21-2013, 03:40 PM
RE: Faibanks Morse model 91 - by BrendaAnnD - 09-21-2013, 04:49 PM
RE: Faibanks Morse model 91 - by BrendaAnnD - 09-21-2013, 04:50 PM
RE: Faibanks Morse model 91 - by jerryhawthorne - 09-21-2013, 05:04 PM
RE: Faibanks Morse model 91 - by murf - 09-21-2013, 05:23 PM
RE: Faibanks Morse model 91 - by murf - 09-21-2013, 05:27 PM
RE: Faibanks Morse model 91 - by jerryhawthorne - 09-21-2013, 05:28 PM
RE: Faibanks Morse model 91 - by murf - 09-21-2013, 05:35 PM
RE: Faibanks Morse model 91 - by Ron Ramirez - 09-21-2013, 05:39 PM
RE: Faibanks Morse model 91 - by jerryhawthorne - 09-21-2013, 05:49 PM
RE: Faibanks Morse model 91 - by murf - 09-22-2013, 09:43 AM
RE: Fairbanks Morse model 91 - by murf - 09-22-2013, 01:34 PM
RE: Fairbanks Morse model 91 - by BrendaAnnD - 09-22-2013, 02:05 PM
RE: Fairbanks Morse model 91 - by murf - 09-22-2013, 02:33 PM
RE: Fairbanks Morse model 91 - by jerryhawthorne - 09-22-2013, 02:47 PM
RE: Fairbanks Morse model 91 - by murf - 09-22-2013, 02:55 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM
Preliminary work on wife's Silvertone 2014
Hello roy, that great news glad it worked out for you !! Sincerely Richardradiorich — 10:50 PM
Preliminary work on wife's Silvertone 2014
Safety caps arrived today.  Soldered one in and had a successful first power-up.  No magic smoke escaped and it tunes in...glyphmon — 09:53 PM

[-]
Who's Online
There are currently 1918 online users. [Complete List]
» 1 Member(s) | 1917 Guest(s)
Avatar

>