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

filter choke
#1

What if any should resistance be on filter choke? I have the schamatic for this radio don,t think it shows resistance for choke .
It,s a Philco model 111. Was playing fine listening to it while eating supper smelled smoke . So i checked electrolytic cap bad.
Iam suspecting filter choke. Icon_biggrin
THANKS Denver
#2

Checked with all wires loose getting 170ohms resistance. Icon_rolleyes
#3

Looks like your choke is just fine. The specs on that filter choke, part no. 3422 are:

Inductance in Henries - 6.5 H., Max current - 150 mA., D.C. resistance - 200 ohms.

Note that the DC resistance has a usual tolerance of 10-20%, so 170 ohms is right in the ballpark.

Be sure there is NO leakage or shorts to the case as well. Disconnect both leads and measure from either one of the leads to the case.

Chuck




Users browsing this thread: 1 Guest(s)
[-]
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 2099 online users. [Complete List]
» 2 Member(s) | 2097 Guest(s)
AvatarAvatar

>