[Milsurplus] E. H. Scottr RCH or SLR-F?

[William Donzelli]

> To better understand what was going on here, one needs to 
> consider some of the radios in use in the period just before 
> the war.  E.g., the SE-1420/IP-501, a design dating to 1918, 
> used a regenerative detector fairly tightly coupled to a 
> large antenna.  Radios of this sort were commonly used on 
> merchant ships to stand watch on 600 meters.  I've been able 
> to hear my set, tuned to 500 KC, a kilometer away with a 
> portable radio held out the car window.

It is likely that all os the SE-1420s were off Naval ships (even smaller,
older non combat vessels) well before the war, but there were various late
20s designs still in use in 1940. I have a picture of a minesweeper (I
think, I will have to look at it again) radio room with an RE, an RF, a
DP, and a TBS. The first two receivers look to be original sets (in 1940 a
bunch were massively converted into REa and RFa - "massive" in that even
the peanut tubes were replaced with octals!), so they would cause
problems with leakage.

William Donzelli
aw288 at osfn.org