ampage
Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum. New: view Recent Searches.
New: visit Schematic Hell!
The sunn still shines online!

 
Listen to great tunes streaming live right now!

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  
previous: jeff RA' doesn't your description of the... -- 1/25/2000 7:40 AM View Thread

Re: SMALL Polypropelene Caps

1/25/2000 3:28 PM
Randall Aiken
email
Re: SMALL Polypropelene Caps
No, the Mallory 150's are metallized polyester (the cheapest of the film types). The characteristics of a polypropylene film/foil type are far superior to metallized polyester, in terms of dissipation factor, dielectric absorption, temperature coefficient, etc. Polyesters have the worst of all of these characteristics compared to other film type caps. Whether or not this affects the tone is a subjective thing, but the cap quality in terms of DF, DA, and temperature drift are real, measurable quantities. Polypropylene film/foil is just a better quality capacitor.  
 
Randall Aiken

 
Replies:
jeff thanks for sharing your considerabl... -- 1/25/2000 6:05 PM