[Milsurplus] [Glowbugs] Quick n dirty crystal selectivity - it no workee

[Hubert Miller]

Robin's barn must be extensive on all sides. The "crystal filter" requires a
balanced to ground bridge, or a neutralizing inductance across the crystal
to resonate the crystal holder 
capacitance. At a sufficiently low impedance point, the capacitance
shouldn't matter. 
 And, the cathode of a tube is not in the signal path? I think they call it
"series resonance". 
-Hue 

-----Original Message-----
From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of
Bill Carns
Sent: Monday, February 15, 2016 7:04 PM
To: 'AKLDGUY .' <neilb0627 at gmail.com>; 'milsurplus'
<milsurplus at mailman.qth.net>
Subject: Re: [Milsurplus] [Glowbugs] Quick n dirty crystal selectivity - it
no workee

Also this seems like the long way around Robin's Barn.

Seems like the right thing to do with that crystal is to insert it in the
signal path.  I think they call that a "crystal filter".

:-)