[MRCA] Torn Fu.d2

[Tom B]

Hi Mark,

As far as batteries go, what do you intend to do with a Torn Fu d2?  
Since it doesn't cover any ham usable frequencies, there's not much you 
can do with it other than demo the receiver.  You could run the 
transmitter into a dummy load and transmit a short distance for a demo.  
This would keep you inside the law.

So, for batteries I would suggest a bunch of 9V batteries to use in 
place of the 80V batteries and some 2V lead acid battery like a gel cel 
for the filaments.   You could also get a dc-dc converter for the 80V 
batteries.  These are available cheap on ebay.

Something like this 
https://www.ebay.com/itm/DC-DC-Boost-Converter-8-32V-to-45-390V-Voltage-ZVS-Step-up-Module-Single/153950157415

If you get these to supply the high voltage you will need to put in a 
shielded box.  They put out tons of noise.   see 
http://k4che.com/BC474power/invnofilter.mp4 and 
http://k4che.com/BC474power/BC474%20Power.htm

Tom


On 5/29/2020 11:05 PM, Captain D. wrote:
> I do have a reprint of the operators manual for the Torn Fu.d2, in 
> German of course, if anybody needs reference material.  What are you 
> guys using for batteries?  Also, I was lucky enough to find an 
> original power plug for the radio in decent enough condition ( I 
> think) to use. Anybody find anybody to make repops?
>
> Just in case anybody is tempted to use the cast resin version of the 
> mast antenna base, don't.  The resin simply isn't strong enough, and 
> has a tendency to snap after little field use.
>
> Finally, it sounds like if we ever got together as a group within 
> radio range of one another, it could be a very interesting  field 
> exercise.
>
> Mark D.
> WW2RDO
>
> In a message dated 5/29/2020 9:11:11 PM Eastern Standard Time, 
> RAFANTINI at salisbury.edu writes:
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