Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Model 96 volume control
#1

Hi all, I am a newby. I own a 1931 vintage lowboy with a model 96 chassis. The volume control works but only goes from medium to loud. It will not allow me to turn it down to a pleasant volume. Can the control be cleaned to fix or does it need to be replaced? I have a cool add for the radio from a 1931 Saturday Evening Post magazine .Thanks!


Attached Files Image(s)
           
#2

Hello Jonnym ,
First all I wanted to welcom you to the Philco Phorum .

As this set goes has anything been done to it recently like any new parts added ?
because if not that might be your issue anyway we would need more information .


The volume control is it scratchy sounding when turned ?

Sincerely Richard
#3

The bottom lead of the vol ctl in 96 is connected to the Center Negative through a 70K resistor (part of an RC filter).
So it is never really at zero vol, but do check that #33 resistor to be 70K or near. If it is much higher or open, the vol will remain high.
https://philcoradio.com/library/index.ph...chematics/

Also see if the potentiometer is open. If it is continuous, even 1M or so, it is OK to use. Clean it (it is a wide paper carbonized band with a brass roller as a wiper) without rubbing it with anything: just spray Deoxit F5 (Fader lube) and let dry; DO NOT use contact cleaners like Deoxit D5.

This is my 96 thread from beginning of this year.
https://philcoradio.com/phorum/showthread.php?tid=25548

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#4

Welcome to the Phorum!
Icon_wave


...and in addition to the annotated schematic that Mike linked to there is the factory schematic info at:
https://philcoradio.com/library/download...l.%201.pdf
#5

Thanks everyone, I will pull the chassis out of the cabinet and do some checking. 
  The volume adjustment is not “scratchy”.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco Model 16 wiring question
Thanks Morzh. So it appears I did wire it incorrectly and I have to switch the wires between pins 2 and 4.bobclausen — 09:24 AM
Philco 46-1209 strange behavior
No, it's not a problem, just during certain condition it could show up. Yes, an internal tube short could do that too. ...morzh — 09:13 AM
HiFi (Chifi) tube amp build - but my own design.
You sound guys are never satisfied. :crazy: :clap:RodB — 09:10 AM
HiFi (Chifi) tube amp build - but my own design.
I got some new ceramic octal tube sockets installed and also tried some different coupling caps.  The results:  The go...TV MAN — 08:42 AM
Philco 46-1209 strange behavior
I pulled the tube out and it's shorted from pin 1 to pin 2. I suppose that's the problem...sq65 — 08:12 AM
1949 Motorola 5A9M
bob  Nice work on battery . If you don't. Have terminals i have a few spares  Samsam — 02:12 AM
1949 Motorola 5A9M
hello mr Fixr, for sure !! I have some radios that I need to make some batteries for too. Sincerely richardradiorich — 12:33 AM
1949 Motorola 5A9M
Dittos, sweet b on the battery. Love the "9 Lives" logo, remembered from my childhood. Other neat ones are t...MrFixr55 — 11:24 PM
Philco 46-1209 strange behavior
Hi Morzh, Dunno if the AC EMI caps are an issue. I never liked the concept but never had an issue with these causin...MrFixr55 — 11:21 PM
Philco 46-1209 strange behavior
And no hum without the 7AF7? Not common but I am thinking heater - cathode short. This would introduce hum in this sta...MrFixr55 — 11:14 PM

[-]
Who's Online
There are currently 1108 online users. [Complete List]
» 2 Member(s) | 1106 Guest(s)
AvatarAvatar

>