[ARC5] Wartime FT-243 xtal mfrs

[Dennis Monticelli]

You may be interested in the book, "Crystal Clear" by Richard J. Thompson,
Jr.   IEEE Press.  c2007.

The book answers your question and more.  It explains how the US came to
making the decision to go with full crystal control and the Signal Corps
taking the lead in developing a widespread cottage industry to make them.
It's a fascinating and well researched story.

Dennis AE6C



On Sun, Jul 30, 2023 at 6:28 PM Paul Thekan <pfthekan at gmail.com> wrote:

> I recently obtained a box of close to 800 or more FT 243 xtals ,haven't
> counted them all yet, and was going through them looking for any useful
> freqs on the ham bands and noticed how many different companies were making
> xtals during the war. So far I've identified at least 45 companies making
> these xtals.
>  Is there any info out there that talks about how many companies were
> involved in making these xtals.
> Thanks
> Paul
> N6FEG
>
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