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

Can't leave well enough alone-48-482
#16

Eric

This is what was trying to get from you....Icon_smile - when you said "I have the correct tool" when asked about the kind of screwdriver you use, I then assumed that you were touching it with an insulated / nonmagnetic screwdriver.

Sure you will get all kinds of things happening when touching just about anything in your radio with a metal tool.

Mondial is correct, it may be acting as an antenna.

It wouldn't hurt to check for the cold solder anyway, but I think somehow you knocked your cap out of alignment.....

1. So, when you turn (not just touch) the cap with the INSULATED screwdriver, can you try to get the signal? That is can the trimmer be made to put through any signal at all?

2. Could you by chance knock BOTH resonant tanks out of alignment, not just one?

3. Have you in fact checked the preceding circuitry, the three 7H7 tubes and their HF transformers? Could something have happened there? It almost sounds that somehow the signal does not even get to the detector tube.
#17

Thanks Morzh, I get no signal at all unless I touch it with the metal screwdriver. This is the only can I touched. The reason I dug into it was because the trimmer stopped responding and then quit. I'll check those things and get back to you.

Eric
The Villages, FL
Member: Philco Phorum, ARF, ARCI & Radiomuseum.org





Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
Testing a speaker and output transformer Trutone A2-G
Would an output transformer if weak, cause the problems I am seeing with lower B+ voltage? murfmurf — 01:22 PM
Testing a speaker and output transformer Trutone A2-G
Hello murf! I merged the threads. Please do not start new threads regarding the same radio. Take care, - GaryGarySP — 10:21 PM
Philco 42-345 Restoration/Repair
Regarding picture 5 on page 1 of this thread this capacitor is #40 on scematics diagram - 4mF+4mF. Black wire is "-...Vlad95 — 09:01 PM
Philco 42-345 Restoration/Repair
That's a dual 4 MFD, red and green are both 4mfd and black is common negative. You should be able to see them in the pow...RodB — 08:58 PM

[-]
Who's Online
There are currently 380 online users. [Complete List]
» 4 Member(s) | 376 Guest(s)
AvatarAvatarAvatarAvatar

>