In article , K3HVG writes:

If the primary reason for the effort is to improve
sensitivity, a tunable RF preamp (e.g.: Ameco PCLP) with a decent n.f.
will oft times work wonders. I use one of these in-line with the
antenna selector of receivers such as the RBS, RBM, BC-348, BC-312,
various older Hammarlunds and Hallicafters with excellent results on the
higher bands. One size fits all!!

And the *tunable* preamp will also get rid of the image problems that plauge
single-conversion receivers.

I did have an RME pre-amp, with 6BA6s, but never got it going. It ocvered only
the upper Ham bands.

Now, are there general-coverage tunable preamps? Of the hollow-state variety?
73, Mike K.

Oscar loves trash, but hates Spam! Delete him to reply to me.

In article et, "COLIN LAMB"
writes:

Wonder what would happen to my GPR-90 value if I spent about a month to
convert it to octal based equivalents?
Fortunately, other projects are more in front of that one.

"Fortunately" is right!
Tell you what, save some work -- you ship me the GPR-90 without the
ocnversion,a nd I'll pay you what it would be worth afterwards :-) :-) :-)
73, Mike K.

Oscar loves trash, but hates Spam! Delete him to reply to me.

In article , K3HVG writes:

If the primary reason for the effort is to improve
sensitivity, a tunable RF preamp (e.g.: Ameco PCLP) with a decent n.f.
will oft times work wonders. I use one of these in-line with the
antenna selector of receivers such as the RBS, RBM, BC-348, BC-312,
various older Hammarlunds and Hallicafters with excellent results on the
higher bands. One size fits all!!

And the *tunable* preamp will also get rid of the image problems that plauge
single-conversion receivers.

I did have an RME pre-amp, with 6BA6s, but never got it going. It ocvered only
the upper Ham bands.

Now, are there general-coverage tunable preamps? Of the hollow-state variety?
73, Mike K.

Oscar loves trash, but hates Spam! Delete him to reply to me.