[Milsurplus] GRC-9 BT-1

[jay_coward at agilent.com]

I took mine apart and soldered up 3 mercury cells and put them inside.Just do it quick and dont let the cells stay hot too long.
Jay

-----Original Message-----
From: milsurplus-bounces at mailman.qth.net
[mailto:milsurplus-bounces at mailman.qth.net]On Behalf Of W2AGN
Sent: Tuesday, May 25, 2004 2:42 PM
To: Mike Morrow
Cc: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] GRC-9 BT-1


On Tue, 25 May 2004, Mike Morrow wrote:

> John wrote:
>
> >Just trying to get an old GRC-9 operating. ... What I would like to ask
> >is what the best thing to use for the Receiver Bias Battery (BT-1). Can I
> >just hook up an AA cell, or was it some odd voltage?
>
> John,
>
> The receiver's BT-1 is nominally 4.5 vdc (positive to ground, of course), but the manual says 4 to 6 volts is OK.  You could substitute one of those little 6 v photo batteries like Canon used in the A-1 SLR.  There's virtually no current flow.
>
> The manual (TM 11-263) is pretty common and cheap at about $15.
>

Thanks much, I'll do just that. I got a Manual, but hadn't seen where it
referred to the voltage, just called it the "bias battery." Probably
didn't get there yet.

---
  _    _    _    _    _
 / \  / \  / \  / \  / \ John L. Sielke
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