[ARC5] Wow...

[Kenneth G. Gordon]

On 31 Jul 2021 at 21:56, MARK DORNEY via ARC5 wrote:

> From what I am gathering from this discussion, the receivers are not the big problem. The 
> transmitters are.

How do you figure that? There are 12 VDC dyanmotors which would easily power the 
transmtters and modulators.

Look, Mark, if you want to build an SCR-274N setup into your own personal weapons carrier, 
or Jeep, feel free to do it any way you wish, including adding your 1/4 ton trailer behind either.

What we have been discussing is how some front-line techs in Iran durind WWII did it.

>From the first photo we were shown here, there is zero evidence in that photo for a trailer, 
there is zero evidence for batteries, and zero evidence for an APU.

We know for a fact that the equipment shown in that photo is SCR-274N equpment via 
Robert Downs. 

We have been assured that converting an SCR-274N system to operate on 12 VDC is 
difficult, and would NOT have been possible by any front-line tech in Iran during WWII from 
evidence provided by Mike Morrow KK5F. 

Both individuals are far more expert at this equipment than possibly anyone else on this 
forum, except Dave Stinson, and possibly in the entire world.

>From the evidence in that single photo, we have concluded that the only way this equipment 
in Iran during WWII could have been used was if there was a source of 24 VDC power 
available.

>From another photo, we have seen that it IS possible to mount an APU in the space in a Jeep 
where the front seat was originally mounted.

There is absolutely no evidence that there was a radio operator AND a driver in that Jeep in 
Iran. Therefore there would be zero need for passenger space in that Jeep. One man could 
have done it all.

Therefore, there was room for batteries.

Brian provided us with evidence that SCR-274N equpment was modified to operate from a 
12 VDC source by a commercial company in Australia, but this does not tell us how some 
front-line tech in Iran with very limited resources and sources of parts did it in Iran in WWII.

Now, from the evidence so far winkled out of that first photo, it is MY OPINION, that the 
easiest way to get the 24 VDC needed to operate the SCR-274N equipment in a Jeep in Iran 
during WWII would have been batteries, most likely four 6 V batteries from wrecked 
Studebaker trucks, charging them from either an APU mounted in the Jeep or from one 
sitting in the electronic shop, that APU coming from wrecked bomber aircraft.

Ken W7EKB