[NJARC] Disc Capacitors

[Mike Feher]

Disc ceramics can exhibit Piezo-electric characteristics and therefore are
not very suitable for high gain low level audio amplifiers. They work well
in low impedance de-coupling circuits and at higher RF frequencies. Regards
- Mike

 
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
 
 

-----Original Message-----
From: njarc-bounces at mailman.qth.net [mailto:njarc-bounces at mailman.qth.net]
On Behalf Of carolew
Sent: Thursday, April 06, 2006 8:56 PM
To: Nick Senker; New Jersey Antique Radio Club
Subject: Re: [NJARC] Disc Capacitors

Visit our web site - See http://www.njarc.org
_______________________________________________
Nick, ceramic discs were used a lot on Hammarlund sets, such as the later
SP-600s and the HQ-180s. They sure stand the test of time a lot better than
paper caps or black beauties. I'm not sure of the scientific basis but I've
heard that ceramic discs can cause problems in certain
audio circuits.

Joe Connor

_______________________________________________
NJARC mailing list
NJARC at mailman.qth.net
http://mailman.qth.net/mailman/listinfo/njarc