Re: Yo! RF dudes!

John Larkin wrote:

On Sat, 07 Apr 2007 13:08:18 -0700, Joerg
<notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> wrote:



HP did that in one of their old delay generators. It's basically
terrible. For a lot of work you wind up with a bad crystal oscillator.
The worst part is that you can't quench it very well for the next
burst... the quartz keeps ringing for a very long time. You can damp
an LC tank to near zero residual oscillation in a single cycle.


Isn't there that trick of drilling a hole into the quartz can and reduce the Q?



I have a friend who is running AT-cut shear mode quartz crystals under
water, no can. The seem to work fine.


Interesting! I guess now someone has to try how they'd run on beer. Reminds me of a Kenyan who used beer instead of (expensive) real brake fluid for his car. Nigerian beer though. Asked about why Nigerian beer and not a brew from Kenya. "It brakes better".

--
Regards, Joerg

http://www.analogconsultants.com
.