[Drake] Preamplfiers and the Non-Need Thereof

[Thomas Beltran]

>
> When I mentioned earlier about modern receivers having no
> need for a preamplifier, you might have asked yourself why
> some new rigs include them.  Actually these rigs already
> have front-ends with low enough noise figures.  What the
> preamp switch actually does is to short out an internal
> attenuator.  There generally is no real preamp.
>
>         73,  Dr. Barry L. Ornitz     WA4VZQ          ornitz@tricon.net
>

Thanks for that really detailed explaination.  My R-4C is in great shape,
but you hit the nail on the head - even the TR-7, I believe, had what it
called a pre-amp.  Thanks again to Barry, and all the other people that
responded.  Tom W6EIJ