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

First attempt at rewinding an oscillator coil (Phil 38-12)
#1

My Philco 38-12 had an open oscillator coil from pin 1 to 2. From 3 to 4 it read 2.4 ohms on my multimeter.

I decided to try re-winding the 1-2 section. After doing so I have a reading of 3.0 ohms between pins 1-2. 3-4 is essentially unchanged.

I do not know what the ohmage is supposed to be exactly for either section. I can't tell from my schematic or else don't know how to read that. My question is----are these readings close enough??? I understand one section is to make oscillation and one section is for frequency. I don't know which is which.

Anybody help me through this?

I am ready to use jump wires and power it up before re-soldering all the connections (total of 5 wires go to the osc.) in the chassis. Will it work? I am assuming I'll have to adjust the transformers and the padder.

Thanks,
Art


Messages In This Thread
First attempt at rewinding an oscillator coil (Phil 38-12) - by Art Hoch - 05-08-2011, 05:58 PM



Users browsing this thread:
[-]
Recent Posts
Philco model 38 code 121 not receiving signal.
Good luck next thing you know you will be winding coils just for the fun of it. DavidDavid — 11:29 AM
Testing a speaker and output transformer Trutone A2-G
morzh Short-circuited turns can be considered as a half-dead transformer. But on this case transformer will hot and s...Vlad95 — 11:01 AM
Testing a speaker and output transformer Trutone A2-G
I am not sure how a transformer could be weak. It could be inadequate, but only when you replace the original with somet...morzh — 09:56 AM
Philco model 38 code 121 not receiving signal.
Good news everyone! I think I have found everything I need for rewinding the antenna coil primary. I found some pla...Stormlord5500 — 09:40 AM
Philco Battery-WWII vintage
My younger sister went to SUNY Plattsburg NY, (BS, MS, RN) in the late 1970sabout 10 min from the Northern NY / Canada b...MrFixr55 — 07:59 AM
Philco Battery-WWII vintage
Hello Bob, What Amazing find! Sincerely Richardradiorich — 10:19 PM
Testing a speaker and output transformer Trutone A2-G
Hi Murf, Do this: Monitor between ground and one plate of the rectifier while playing the radio.  Do the same with ...MrFixr55 — 09:51 PM
Philco Battery-WWII vintage
Mike; I take it that Soviet cars did not come equipped with block heaters, hence the hot oil change? Where I lived in...Arran — 08:42 PM
Philco 42-345 Restoration/Repair
The more the better. (Within reasonable limits.) 2-5 times more is no problem in this case.Vlad95 — 03:50 PM
Philco 42-345 Restoration/Repair
Thanks, RodB and Vlad95, I was mainly trying to figure out this capacitor to locate a replacement, Vlad thank you for...osanders0311 — 03:44 PM

[-]
Who's Online
There are currently 1193 online users. [Complete List]
» 2 Member(s) | 1191 Guest(s)
AvatarAvatar

>