[MRCA] Torn Fu.d2

[B. Smith]

Another video of "noise" suppression from small inverters.
Z
http://k4che.com/Tempvideo/Zenith/Zenith%20k4che.mp4

On 5/30/2020 8:09 AM, Tom B wrote:
>
> 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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