"Richard Clark" wrote in message
...
On Sat, 06 May 2006 08:35:28 +0200, switcher
wrote:

Yes, I would buy fixed, of course, they have them in eu at www.conrad.fr

Make sure they exhibit low ESR (Equivalent Series Resistance). Not
all capacitors are especially suitable for tuning.

73's
Richard Clark, KB7QHC

Don't use the cheap ceramic capacitors that are meant to be used for
bypassing. A friend of mine used some in a tuned circuit, and he got a
distorted sine wave output. In addition to possibly high ESR, the value of
these capacitors changes with the instantaneous applied voltage. To be safe,
use caps with mica or plastic dielectric.

Tam