Was in the local electronics surplus store today looking for something totally non-mil related, and lo and behold I spied a RACAL 931 with battery pack and matching MA-937 vehicle power supply.

For $45 I just couldn't pass it up.

So now it's on the bench getting checked out and cleaned up. 

I'm going to need to source some of the cannon type plug connectors if anyone knows a good source.

Mike

KD7VRG

-------- Original message --------

From: [email protected]

Date: 4/28/22 4:48 PM (GMT-07:00)

To: 'Doran Platt' <[email protected]>, [email protected]

Subject: Re: [MRCA] Trivia Question

Just a guess, but maybe a common interplane freq.? (126.18 MHz), or maybe on HF using the fundamental.  If for VHF, it would follow there be an equally common receiver mixer crystal.

I have a bunch of them around, and 7010 is quite common here as well.

 

Scott W7SVJ

 

From: [email protected] <[email protected]> On Behalf Of Doran Platt
Sent: Thursday, April 28, 2022 4:41 PM
To: [email protected]
Subject: [MRCA] Trivia Question

 

With your kind indulgence,  I ask the following:

Why do we find a proliferation of surplus CR-1-A crystals cut for 7010 kHz?

K3HVG

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