Tweed amp caps question?

KHELSTROM · Post by **KHELSTROM** » 20 Mar 2008, 18:42

I'm making a replica of a tweed deluxe and have access to many of these cornell dubilier caps. Does anyone know the composition of these caps and are they the same as or similar to the old Astron caps found in the original tweeds? I also have access to paper and oil caps but my research has concluded that these Astron caps used in the mid to late 50s were not paper and oil composition.

jrc4558 · Post by **jrc4558** » 20 Mar 2008, 18:55

No idea on Astron similarity, but read Aiken's page on connecting capacitor outside foil direction. Since its marked on those, too!

Spewbag · Post by **Spewbag** » 20 Mar 2008, 19:54

KHELSTROM wrote:I'm making a replica of a tweed deluxe and have access to many of these cornell dubilier caps. Does anyone know the composition of these caps and are they the same as or similar to the old Astron caps found in the original tweeds? I also have access to paper and oil caps but my research has concluded that these Astron caps used in the mid to late 50s were not paper and oil composition.

You don't plan on using old caps for your build do you?

KHELSTROM · Post by **KHELSTROM** » 20 Mar 2008, 20:14

I have tested these caps under high voltage for drift and leakage and they're virtually new. The age of these caps does not worry me a bit.

jrc4558 · Post by **jrc4558** » 21 Mar 2008, 14:19

Spewbag wrote: You don't plan on using old caps for your build do you?

IMHO, film caps dont dry out like ceramics of eletrolytics, and, if stored properly, can be used even in old age.