[AMRadio] crystals for broadcast transmitter

Ed Sieb esieb at sympatico.ca
Thu Aug 31 16:18:05 EDT 2006

Unless I'm completely mistaken I believe that the crystal inside the holder
(a large octal based oven) is an HC6/u type.     One can plug in FT-243 type
xtals in the oven sockets, or use modern style HC6/u with "fat" pins.


-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net]On Behalf Of John Lawson
Sent: Thursday, August 31, 2006 3:59 PM
To: Discussion of AM Radio in the Amateur Service
Subject: Re: [AMRadio] crystals for broadcast transmitter

On Thu, 31 Aug 2006, uvcm inc. wrote:

> Where can I get a good crystal for 3870 for a RCA broadcast transmitter?

   Not enough info:

   What is the RCA model number of the oven/holder?

   Also - an 807 is the oscillator, IIRC.

   And Brian Carling (on this list) sells crystals, but they'd most likely
need to be modified to fit in the existing fixture.

   Perhpas someone who has modded a classis RCA rock-holder can give better


John  KB6SCO

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