[ARC5] Wartime FT-243 xtal mfrs

[Paul Thekan]

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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