[ARC5] interesting ?

[Kenneth G. Gordon]

On 24 Feb 2018 at 8:16, John Franke wrote:

> Just to add a bit to Mike's statements, the shipboard version of the APR-1 was labeled SPR-1 
> and looks identical to the APR-1 except the case is iron instead of aluminum. The audio output 
> from the APR-1 and 4 is adequate for driving a speaker through a matching transformer. There 
> was another shipboard receiver that used the APR-1 and APR-4 plugins. It was labeled RDO 
> and the panadaptor was labeled RDP. There was a matching pulse analyzer labeled RDJ. 

I have two RDOs here and several of the correct plug-ins. The RDO is huge, and beautifully 
built inside. A real work of art, to my mind.

So are the plug-ins for that matter.

I've never seen the RDP or RDJ, though, but I'll bet they are at least as huge as the 
RDO...and probably as beautifully made.

Ken W7EKB

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