[Milsurplus] ARB Receiver Questions

[Mike Hanz]

A better one that I cleaned up is at the bottom of 
http://aafradio.org/docs/atb-arb.html

73,
Mike  KC4TOS

Al Klase wrote:
> There a crummy schiz here:  http://nj7p.org/millist/sch/arb.gif
>
> The 991 is a neon bulb, without an internal series resistor.  RCA used 
> this as voltage regulators in ARB, BC-348, and possibly others.  It's 
> the component connected to the 12AS7 screen grid in the schematic, and 
> stabilizes the local oscillator.  You could replace it with about 60 
> volts of Zener diodes.  Radio will probably work without it, but could 
> be drifty.
>
> Gotta run,
> Al
>
> On 1/15/2010 9:01 PM, J. Forster wrote:
>   
>> Hi,
>>
>> Does anybody have a link for a good schematic of the ARB Receiver? I
>> cannot access my manuals at the moment.
>>
>> Basically, I'm most interested in the two-pin bayonet lamp socket in the
>> Rx. I'd really like to know what belongs in that socket. It's marked 991
>> BTW.
>>
>> Thanks in advance,
>>
>> -John
>>
>> ==============
>>
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