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

Possible Oscilator Problem?
#4

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”


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



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
PT 6 chassis screws size???
Hello bridKarl, that sounds right or maybe 8/32 . Sincerely Richardradiorich — 01:00 AM
PT 6 chassis screws size???
Have this done except for missing chassis screws. It looks like 1 inch 6/32 sheet metal screw may work but can anyone s...bridkarl — 10:32 PM
Philco model 38 code 121 not receiving signal.
Hello Stormlord, Well done on rewinding that coil it turned fairly good for your first one. Sincerely Richardradiorich — 09:12 PM
Philco model 38 code 121 not receiving signal.
Well here it is. It ain't pretty, but hopefully it'll work. I checked it with my DMM on continuity and it keeps and r...Stormlord5500 — 08:56 PM
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM

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

>