[MRCA] Communist radio wakes up from a long sleep

Meir Ben-Dror WF2U wf2u at ws19ops.com
Sun Sep 22 17:57:04 EDT 2019


I have the receiver, and its power supply as part of the whole 
Czechoslovakian RM 31-M-a (Trinec) station, with the RS41 transmitter,  
its power supply and the antenna tuner (all NOS, manufactured in 1968, 
except the receiver which I brought back from Hungary several years 
before I got the rest of the station). The station is the mission 
equivalent of the US AN/GRC-19. The RS41 transmitter puts out 100 W 
AM/CW/RTTY, and runs off a 220/240 VAC input power supply. I have the 
manual of the whole system in Czech, but I also have a complete 
technical description of the R-4 receiver in Hungarian (I speak 
Hungarian, but never translated it to English).

Unfortunately I don't have a spare receiver-to-power supply cable that I 
could help out Al with. I suggest to try to find automotive spade lugs 
that may fit the connector contacts as a substitute. If There is a Czech 
ham I was in contact with a few years ago who helped me out with getting 
some other surplus parts, I'll get in touch with him and ask him to try 
to find a cable. I also suggest to try to find the receiver power 
supply, it works off 12 VDC for vehicular use or 110-120/220-240 VAC .

The receiver otherwise is a neat receiver, stable, although the audio is 
slightly anemic as all the tubes (easy logistics) in it are 6BA6's, 
including the audio output.

Good luck Al,

Best 73, Meir WF2U

Landrum, SC

On 9/22/2019 2:54 PM, J Mcvey via MRCA wrote:
> That's a might fine looking communist radio you have there!
> I should be so lucky to have such things thrust upon me!
>
> On Saturday, September 21, 2019, 8:03:15 PM EDT, Al Klase 
> <ark at ar88.net> wrote:
>
>
> http://www.ar88.net/vid/Woke.m4v
>
> This is a Czech R-4, made by Tesla, with Hungarian panel markings.  It 
> was forced upon me at the Kutztown Antique Radio meet yesterday.
>
> Do I have any chance at all of find a connector for it?
>
>
>
> About 3" overall.
>
> 73,
> Al
> -- 
> Al Klase – N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
>
>
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