[Milsurplus] BC-639 Reciever..History?

[Ray Chase]

The matching transmitter is indeed the BC-640, a monster set, 6' tall. 
Designed and built by Bendix early in WWI in order to communcate with 
aircraft, mainly at established bases.  Looks like it was designed by a 
bunch of hams, probably was.  At one time when I was young and stupid I 
bought 4 of them, still have one.  Many claimed that it generated gobs of 
TVI even when it was turned off.  Can supply more information if anyone is 
truly interested.
Ray
----- Original Message ----- 
From: "D C *Mac* Macdonald" <k2gkk at hotmail.com>
To: <morningstar7 at worldnet.att.net>; "Military Surplus Mail List" 
<milsurplus at mailman.qth.net>; "W5JDY, Joe" <w5jdy at cox.net>
Sent: Friday, April 30, 2010 9:37 PM
Subject: Re: [Milsurplus] BC-639 Reciever..History?


>
> Contact Joe Walden, W5JDY, of Norman, OK.  I sold
> him my BC639 that I had owned since about 1965.
> He was going to go through it.  He works on lots
> of old stuff as a hobby in his musical instrument
> store.
>
> I have copied him on this message!
>
> And yes, the BC-640 was the "matching" transmitter.
> I know that US Air Force used them and probably the
> CAA/FAA as well.  The 640 transmitter is a big and
> heavy monster.  Six foot (at least) 19" rack cabinet.
>
> 73  Mac, K2GKK/5
> Oklahoma City, OK
>
>
>
>
> ----------------------------------------
> From: morningstar7 at worldnet.att.net
> To: Milsurplus at mailman.qth.net
> Date: Fri, 30 Apr 2010 17:15:16 -0700
> Subject: [Milsurplus] BC-639 Reciever..History?
>
> Hi,
>
> Anyone know much about the BC-639?
>
> Would like comments about it as i now have one and
> have it apart on the bench for cleanup.
>
> I hear the matching TX was the BC-640, no confirmation.
>
> Also, who used it and what time frame...?
>
> Thanks folks,
>
> Tom -.- -.-. --... .-. -... -
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