[AMRadio] Crystal Mic Elements for Otis

John Coleman jc at pctechref.com
Mon Dec 10 10:25:03 EST 2007

Otis left them out in the shack and I guess the heat and cold got them.
I loaned him one and he was going to get on the air Sunday morning but said
the RCVR didn't work all the time. So I need to make another trip out and
see what's wrong there. 

For those that don't know, Otis, K5SWK, uses the elements in an old RCA
housing not the D104 housing.  He can't use a dynamic of any kind as there
is way to much magnetic hum floating around his shack.  I will probably
build him a condenser circuit for the RCA housing soon while he uses my D104
and is in the mood, so to speak.  Mean while I thought it would be a good
idea to get his two D104s all up and running again.


-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of Geoff/W5OMR
Sent: Saturday, December 08, 2007 6:56 PM
To: Discussion of AM Radio in the Amateur Service
Subject: Re: [AMRadio] Crystal Mic Elements

John Coleman wrote:
> Does anyone know if someone is making and selling the cartridges for the
> D104.

I thought we went thought all that, a few years ago, and Otis bought a 
few (several?) Crystal Element cartridges.

Does he have any left?  Time to go visit the Ancient One, anyway...

Driving your AM Rig without a scope, 
is like driving your car at night, without headlights. (K4KYV)

73 = Best Regards,

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