[Hallicrafters] SX-111 Crystal

[Rich Oliver]

Sounds right, but I have to wonder why anybody needed to get at the 
crystal in the first place.

KC9GQ

Bill Gerhold wrote:

>I received a few more msg's about the Crystal
>calibrator in the SX-111 and it seems that this
>calibrator or crystal in a tube, does not need
>to be in a vacuum environment.
>
>Numerous "Mr. Fixits", said they cut or smashed
>the glass envelope to gain access to the crystal
>and just glued the glass back.  One individual,
>shattered the glass envelope and replaced it with
>a pill bottle container!  Works just fine.
>
>So, it would seem from these comments, that the
>unit will function witout a vacuum and can take
>a licking and keep on ticking.
>
>K2WH
>
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