[Boatanchors] Crystals and Coax

[Glen Zook]

It is the capacity of the coaxial cable that is killing you!  I would build a small external oscillator/buffer (i.e. a transistor, or two) to use the external crystals.

Glen, K9STH

Website:  http://k9sth.com


--- On Sun, 10/24/10, Keith Densmore <densmore at kaponline.com> wrote:

I have built up an external crystal pak to extend shortwave frequency coverage to my beloved Drake-2B.
 
But (there is always a but), using coax, even the thin stuff kills the crystal signal to the Drake's oscillator. In other words, if crystal X is plugged into a crystal socket in the Drake, no problem. But using the crystal outside the receiver, even with less than a foot of coax seems to kill its output.
 
Anyone know a solution?  special coax? Some kind of coil to tune out the reactance in the coax?