Possible Oscilator Problem?

Register

Guest Join Us

Hello Guest,

Please feel free to join us!
There are many more parts of the Phorum that only members can see.

Thread Rating:

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

Linear Mode

Possible Oscilator Problem?

Chas
Senior Member

Posts: 693
Threads: 8
Joined: Apr 2018
City: S. Dartmouth State, Province, Country: MA

#4

10-11-2023, 02:17 PM

Quote:I'll start start chipping away at it.

Do not "chip away", there is risk of mechanical damage that could obscure how it was made. Do look for poor connections to the errant coil winding, usually at the terminations. Besides, if it is an easy fix, the heat will drive off 90 years of moisture. A solvent such as mineral spirits will dissolve bees wax too.
Warm with a heat gun, bees wax only needs 140F or so... Look for poor connections at terminals, green spots are corrosion. Keep heat away if mineral spirits are used, fire danger. Spirit fumes will be carburized by heat gun, toxic, as well as dangerous

If intent is rewind, number of turns, wire size (type) is important. If there is a insulating layer between coils, that is celluloid and decays then corrodes the wire...

GL

Chas

Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”

(This post was last modified: 10-11-2023, 08:52 PM by Chas.)

Find

« Next Oldest | Next Newest »

Messages In This Thread

Possible Oscilator Problem? - by Kahuna59 - 10-10-2023, 09:48 AM

RE: Possible Oscilator Problem? - by Chas - 10-10-2023, 06:07 PM

RE: Possible Oscilator Problem? - by Kahuna59 - 10-11-2023, 11:51 AM

RE: Possible Oscilator Problem? - by Chas - 10-11-2023, 02:17 PM

RE: Possible Oscilator Problem? - by Kahuna59 - 10-12-2023, 12:05 PM

RE: Possible Oscilator Problem? - by Chas - 10-12-2023, 12:48 PM

RE: Possible Oscilator Problem? - by Kahuna59 - 10-12-2023, 03:36 PM

RE: Possible Oscilator Problem? - by Kahuna59 - 10-23-2023, 07:26 AM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM
Hickok AC51 tube tester
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM
IF can wire size and Rubber mounts?
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it...Arran — 06:07 AM
My last cabinet for this year
Hello Dan, That is really beautiful what great looking radio you have ! I have friends who live in Calgary and the wea...radiorich — 01:51 AM

Who's Online

There are currently 5230 online users. [Complete List]
» 1 Member(s) | 5229 Guest(s)