Motorola (Galvin Manufacturing at the time), I believe, manufactured more crystals during WWII, than anyone else.

 

Scott W7SVJ

 

From: [email protected] <[email protected]> On Behalf Of [email protected]
Sent: Sunday, July 30, 2023 19:17
To: ARC-5 <[email protected]>; Paul Thekan <[email protected]>
Subject: Re: [ARC5] Wartime FT-243 xtal mfrs

 

Look for AF4K's website.

http://af4k-crystals.com/RadioCrystals-Holders-Companies-History.htm#companies

 

The current operator of AF4K is always looking for FT-243 style holders to stuff with modern & smaller crystal units & sell to hams.

 

Wayne

WB4OGM

 

On Sunday, July 30, 2023 at 07:28:53 PM MDT, Paul Thekan <[email protected]> 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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