[ARC5] SCR-183/-283 4-5 MC Coil on 75 MTRs

[Mike Hanz]

Yup.  I've only found one place where it was actually used, and that's 
in the Tunable VHF ARC-5 transmitters as a Master Oscillator - 
http://aafradio.org/flightdeck/arc5-4.htm

http://aafradio.org/flightdeck//ARC-5-SD-838.pdf has the detailed specs 
on the tube.

          73,
-Mike  KC4TOS

On 7/9/2014 11:34 AM, Ian Wilson wrote:
> Tube Lore doesn't give any history although it mentions the SD838
> as a variant. This was a Sylvania 'developmental type' - loktal, 25V
> 130mA heater.
>
> 73, ian K3IMW
>
> On Wed, Jul 9, 2014 at 8:19 AM, Geoff <geoffrey at jeremy.mv.com> wrote:
>> Ive heard it said that the 1626 is a souped up 6J5G with increased
>> emission to get the gm up and a new plate structure.
>>
>> Any idea how long they run that way? One trick was to run a filament at
>> higher voltage and not worry about short life in wartime. No, Im not saying
>> they used a 6.3V filament but something under 12.6V that cost less and used
>> less critical material.