RLucch2098 wrote:
Hi All;
I have some small plug in crystals, 1/2"w x 3/8"h x 1/8" thick.
They are all marked with a frequency but I have no idea what they are used in
or good for.
Frequencies are plainly visible in the pics
http://www.myradioroom.com/13xtals.jpg
http://www.myradioroom.com/10xtals.jpg
Make me an offer if you want but E-Mail to :-)
Thanks es 73...........RICH-WA2RQY
Web-Page URL HTTP://members.aol.com/rlucch2098/index.html



I am going to make a guess at this.
They appear to be crystals from one of the early semi-synthesized CB
radios (Robyn maybe??) perhaps manufactured around the late 1960's
early 1970's. The early CB's (such as the Johnson Messenger I & II)
needed a receive and transmit crystal for each separate channel. They
developed a process where they could use 10 crystals, as I recall, to
give 23 channel transmit and receive. Of course this is before the 40
channel units became availalbe.

Andy
WD4KDN

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