A Capacitor Question?

4/8/2009 3:00:47 PMJohnny

Hey all,
I have a requirement for a .003ufd 1000volt capacitor,Non-electrolytic. I don't have one. Can I substitute a 3900pf 1000v ceramic disc cap in its place? I have one of these.
Thanks, Johnny

4/8/2009 3:03:54 PMLewis L

:Hey all,
:I have a requirement for a .003ufd 1000volt capacitor,Non-electrolytic. I don't have one. Can I substitute a 3900pf 1000v ceramic disc cap in its place? I have one of these.
:Thanks, Johnny

What is the job of the cap? What is it in? Need more info.
Lewis

4/8/2009 3:07:48 PMJohnny

::Hey all,
::I have a requirement for a .003ufd 1000volt capacitor,Non-electrolytic. I don't have one. Can I substitute a 3900pf 1000v ceramic disc cap in its place? I have one of these.
::Thanks, Johnny
:
:
:What is the job of the cap? What is it in? Need more info.
:
:Sorry Lewis, In too much of a rush today. The radio is a Philco 41-285 and the cap is #49 coming off of the tone pot.
Johnny
:Lewis

4/8/2009 4:15:08 PMJohnny

:::Hey all,
:::I have a requirement for a .003ufd 1000volt capacitor,Non-electrolytic. I don't have one. Can I substitute a 3900pf 1000v ceramic disc cap in its place? I have one of these.
:::Thanks, Johnny
::
::
::What is the job of the cap? What is it in? Need more info.
::
::Sorry Lewis, In too much of a rush today. The radio is a Philco 41-285 and the cap is #49 coming off of the tone pot.
:Johnny
::Lewis
:
:Little more info. It's the #49 cap on the schematic (.003) that connects from the tone control to the plate of the 7C6 tube.

4/8/2009 4:30:56 PMWarren

::::Hey all,
::::I have a requirement for a .003ufd 1000volt capacitor,Non-electrolytic. I don't have one. Can I substitute a 3900pf 1000v ceramic disc cap in its place? I have one of these.
::::Thanks, Johnny
:::
:::
:::What is the job of the cap? What is it in? Need more info.
:::
:::Sorry Lewis, In too much of a rush today. The radio is a Philco 41-285 and the cap is #49 coming off of the tone pot.
::Johnny
:::Lewis
::
::Little more info. It's the #49 cap on the schematic (.003) that connects from the tone control to the plate of the 7C6 tube.

A 3900 PF would be .0039 MFD. For a tone compensation circuit that should be close enough. Can't hurt, give it a try and see if the tone works as well as you think it should.