From: "David Austin" 
Subject: [drakelist] R4C alignment?


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Sorry if this message appears twice. Think I sent it to the wrong =
address for the list first time.

I have a Drake R4C. With no antenna connected, the peak of white noise
obtainable on any band using the preselector is not at all pronounced, =
and
on 28MHz is barely (but just) audible with the audio gain nearly fully
advanced. The RX has no mods (but have a full bag of Sherwood parts and
filters waiting to be fitted!).

Is this a sign that the receiver needs alignment and/or new tubes, or is =
it
just the mark of an excellent low noise receiver design? How often would =
an
R4C need alignment, assuming no major maintenance has been carried out, =
if
at all?

David Austin
G4GTP

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Sorry if this message appears twice. Think I sent it to the wrong =
address=20
for the list first time.
 
I have a Drake=20
R4C. With no antenna connected, the peak of white noiseobtainable on =
any=20
band using the preselector is not at all pronounced, andon 28MHz is =
barely=20
(but just) audible with the audio gain nearly fullyadvanced. The RX =
has no=20
mods (but have a full bag of Sherwood parts andfilters waiting to be =

fitted!).Is this a sign that the receiver needs
alignment and/or =
new=20
tubes, or is itjust the mark of an excellent low noise receiver =
design? How=20
often would anR4C need alignment, assuming no major maintenance has =
been=20
carried out, ifat all?David=20
AustinG4GTP

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