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

How does one clean an older philco volume control?
#1

So my 112 has a type of volume control I have never seen before. Sort of a spring-loaded brass wheel running around inside a resistive metal band. I'm guessing that after 77 years it could do with a cleaning (though i have not heard audio through it yet...so maybe it is fine? it appears scratchy when i monitor its resistance with my multimeter).

So is there a good way to clean these? Should I just leave it alone?

Here is a picture of the workings:

[Image: http://farm3.staticflickr.com/2220/23672...99fe_z.jpg]
Crazy Philco volume control by Audin, on Flickr

http://www.flickr.com/photos/audin/2367257525/


Messages In This Thread
How does one clean an older philco volume control? - by audin - 03-29-2008, 05:44 PM
[No subject] - by Alan Douglas - 03-29-2008, 09:32 PM
[No subject] - by exray - 03-29-2008, 09:34 PM
[No subject] - by audin - 03-31-2008, 05:12 PM
[No subject] - by Alan Douglas - 04-01-2008, 12:15 PM



Users browsing this thread:
[-]
Recent Posts
Philco 42-345 Restoration/Repair
Hi OSanders, Look carefully at the band switch. Turn it slowly and "wiggle" it around the desired band. ...MrFixr55 — 12:33 AM
5U4 vs 5Z4 tubes
I think that RCA and GE introduced metal tubes in the USA in 1936.  I don't know if they were being made by RCA, GE or b...MrFixr55 — 11:20 PM
Philco 42-345 Restoration/Repair
Vlad95, Thank you for the stringing guides and wow there are so manyosanders0311 — 06:01 PM
5U4 vs 5Z4 tubes
A pre war Hallicrafters, and an early one too, very nice! 1936 is pretty early for metal tubes too, which would explain ...Arran — 05:58 PM
Philco 42-345 Restoration/Repair
Thanks Rod, "When you hear the background hiss and no station it usually indicates that the oscillator quit" ...osanders0311 — 05:52 PM
Philco 42-345 Restoration/Repair
RodB :beerchug:Vlad95 — 10:22 AM
Philco 42-345 Restoration/Repair
Vlad, you nailed it. Swiss and German roots.RodB — 09:54 AM
5U4 vs 5Z4 tubes
Well this is a Hallicrafters SX/9 circa 1936. No real issues so far although I dodged a real bullet with a cap that was...bridkarl — 07:59 AM
5U4 vs 5Z4 tubes
The pinout is the same but the 5U4 has a 3 amp filament, verses 2 amps or less on the 5Z4. I think that the pinout of a ...Arran — 12:04 AM
Philco 42-345 Restoration/Repair
By the way. osanders0311 Take a look here: Dial cord stringing Guides May be here you can fount correct string settin...Vlad95 — 11:15 PM

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

>