[Milsurplus] R-122A/ARN-12 Marker Beacon Receiver

[jmfranke at cox.net]

I have a copy of the manual if you need it. And, I have two or three of the receivers. The operating frequency is of course 75 MHz. The Local oscillator uses the second harmonic of a crystal at 34.05 MHz. The IF is 6.9 MHz. The bandwidth is 125 kHz. The receiver uses nine tubes; five-6AJ5, two-6AL5, and two2-28D7.  Sensitivity is either 500 microvolts or 1500 microvolts. Tone reception is for 400, 1300, or 3000 Hz. The filaments and high voltage is derived from 26.5 Vdc.

John  WA4WDL

---- MWM via Milsurplus <milsurplus at mailman.qth.net> wrote: 
> Would anyone any info on this set, circuit etc?
> 
> 
> Ben. 
> ______________________________________________________________
> Milsurplus mailing list
> Home: http://mailman.qth.net/mailman/listinfo/milsurplus
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Milsurplus at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html