[R-390] EK-07 Appreciation Tour

[Richard M. MC Clung]

I guess I'll put my 2-cents in this list of receivers.

For band cruising and just plain signal hunting I will say the R/S
EK-o7 is my Number 1 followed by an SP-600 with the Nuvistor Plug RF
Amplifier Field Modification at Number 2. 

Pure listening pleasure would be the SP-600 with the audio output
connected to a large bass reflex enclosure with a 15" woofer, a 6"
mid-range and a horn tweeter. Even the earlier SP-100,200,400 series
of receivers are great SW listeners. Especially if all of the up
grades and modifications pertaining to frequency stability have been
applied to them.

For SERIOUS signal hunting I would go with the R-390 at Number 1, the
R-725 at Number 2, the R-390A at Number 3. These three also sound
pretty good when the diode load audio is feed into a decent audio and
speaker system. The R-392, when properly aligned, hand picked tubes
are selected, (get rid of the transistor audio amp and replace the
tube) and a decent audio set up as above provided is a real
surprising performer. But in the easy listening category they are
still behind the R/S and SP-600.

My ideal set up with the above receivers for Surveillance/Intercept
operation; I would want an R/S EK-07 as a hunter/scanner to hand off
to a pair of R-390's set up to operate in diversity with at least a
vertical and a horizontal antenna.

For easy listening give a pair of 6V6's into a large bass reflex
speaker box.

RICH  WA6KNW