[Milsurplus] FM-141 / SCR-284

[WA5CAB--- via Milsurplus]

The battery charging generator was PE-210-(*).  But my best guess on it's 
introduction is 1943.  SCR-284 was first fielded in 1942.

The PE-162 was originally built for AN/TRC-2 and SCR-694-C, probably early 
1944 as the -B model came out mid 1945.  It did not have capability to run 
the SCR-284.  Both PE-162-A and PE-162-B originally had that capability.  I 
haven't pinned down the date of the MWO that removed the capability from 
PE-162-B but estimate it to have been in 1951 around the time that the PE-162-C 
came out.  Estimate based on 1950 DA PAM 310 which doesn't show it but lists 
MWO's back to 1945.  And 1958 DA PAM 310 which doesn't show it but it lists 
MWO's back to 1952.

Hue, on the original subject, if you are going to use a PE-103 and PE-104 
to run the radio with a lugged along battery, you might want to keep the 
FM-41-A as the PE-103 is quite top heavy and the shock mounts on the bottom of 
it weren't designed to keep it upright.  There are four rubber bumpers in the 
FM-41 that do this.  Keying the transmitter in voice starts the dynamotor 
(because the receiver runs off of PE-104) and could turn the dynamotor over 
if something (including the operator's hand) isn't present to prevent it.  Or 
you would want to build a base more or less similar to the lower half of 
the FM-41.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

In a message dated 05/26/2014 11:00:04 AM Central Daylight Time, 
milsurplus at mailman.qth.net writes: 
> Hue,
> 
> GN-45s are a lot more common and go for a lot less $ than the Vehicle  
> frame (FM-41-A according to my book).
> 
> Initially, at least, there doesn't seem to have been a stand-alone  
> gasoline powered generator either to
> charge a battery or run the PE-103 directly, one apparently had to  
> have a jeep or other vehicle available
> to do that.  The gasoline powered PE-162 MG set  came along later,  
> probably coincident with the introduction
> of the BC-1306 and provided both filament and HV voltages directly and  
> early PE-162s included output
> connectors for both the older -284 and the newer radios (1306 and  
> subsequently the GRC-9).  Fairly early-on
> the connector and other -284 specific hardware was left off all newly  
> manufactured PE-162s and subsequent
> change orders also directed the removal of the -284 components from  
> earlier MG sets.
> 
> A PE-162 can be readily modified back for use with the SCR-284 with  
> the addition of an internal relay and a made-up
> adapter cord.
> 
> Dennis D.  W7QHO
> Glendale, CA