06-03-2025, 08:55 AM
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
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.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
