Capacitors - TECH-CAP

Capacitors - TECH-CAP

Post by Ken Foshe » Wed, 06 Jun 2001 10:31:38



I ordered some capacitors and received some with this name on them. Can
someone tell me who makes/markets under this name. I've looked without
success.

Any help is appreciated

 
 
 

Capacitors - TECH-CAP

Post by Dans Cockatoo Ran » Tue, 03 Jul 2001 20:57:04


Quote:

> I ordered some capacitors and received some with this name on them. Can
> someone tell me who makes/markets under this name. I've looked without
> success.

> Any help is appreciated

Many of these metallized film capacitors are made in Taiwan. Bob of Bob's
antique radios told me most of what you can get anymore is from that area.
Evidently the high voltage axials are not as popular with manufacturers
now that most of the electronics is low voltage surface mount or radial
PC mount type components. There are a number of American manufacturers
still making axial capacitors but sometimes they are very hard to find
in stock. Try and get a new polystyrene capacitor! As far as I can tell
everyone who was making them has quit. The best substitute for low
dielectric absorption is either Teflon, which is outrageously expensive,
or glass which is not exactly cheap either.

There are a lot of off names and many caps that have no name at all made
in Taiwan.

 
 
 

Capacitors - TECH-CAP

Post by George R. Gonzale » Wed, 04 Jul 2001 01:36:16



substitute for low

Quote:
> dielectric absorption is either Teflon, which is outrageously expensive,
> or glass which is not exactly cheap either.

Just for fun a few weeks ago I tried making a Teflon(tm) capacitor.

I took some plumber's Teflon thread tape, and some aluminum duct tape.
Stuck the alum tape to both sides of a 3-foot section of Teflon(tm) tape (it
did stick). Then rolled it up with another layer of Teflon(tm) tape.  Put it
on the cap bridge.  About 0.02uf, 3% dissipation factor.  Not as good a DF
as you'd expect, maybe due to the goopy stickum glue on the aluminum tape.

Next project when I have a minute, do it again using regular un-sticky foil.