[Milsurplus] USN RBM vs. RBS Questions

[Hue Miller]

----- Original Message ----- 
From: "LI WHA HO WALLY" <k5op@yahoo.com>

> Hue, As you know the RBM consisted of two receivers
> ... One for LF and a 2 to 20 mc HF... The RBS is
> almost the same as the RBM HF... The IF freqs are
> different... The RBS is 455 and tne RBM HF is 1255 kc
> I think... 

Better rethink the last sentence, Wally.
It's the same receiver, except for the nameplate, knobs,
and sometimes the logging chart.

I have thought that the selectivity might actually be improved
if the extra link coil was disconnected entirely and the IFs
retuned without  them. Or, change the dimmer pot to control a
Q Multiplier. I found that as is, i could not comfortably listen
in the crowded  6 MHz broadcast band. The wide selectivity
would fit with the "alert broadcast" receiver role.
Hue Miller