[Drake] Going price of R4-C

Fri, 19 Mar 2004 15:11:29 -0600

Hi Frank,

I have the 5 position AGC switch and  it does not change the
original AGC, it
only adds two steps between Fast/Medium and
Medium/Slow........works
perfect.

Bill  KB9IV

----- Original Message ----- 
From: <[email protected]>
To: <[email protected]>
Cc: "Dave Edwards" <[email protected]>; "Lee Bahr"
<[email protected]>; <[email protected]>
Sent: Friday, March 19, 2004 2:57 PM
Subject: Re: [Drake] Going price of R4-C

>
>
> [email protected] wrote:
>
> > Assuming the purpose of ownership is a receiver that
works well, rather
> > than a shelf decoration, which modifications offer no
improvement
> > or degrade the performance? Why?
>
> I is impossible to degrade the performance of a stock R4C
with zero options.
>
> The R4C was the first model that Drake began to market
a-la-carte.  The basic
> radio only got you into the running.  It had ears but was
close to worthless as
> a communications receiver.
>
> It required additional expenditure on filters, noise
blanker, and optional
> crystals.
>
> Most of the mods I have seen deal with upgrading the
poorly designed stock low
> voltage power supply and audio output stage.  Apparently
the R4C may have been
> used by Drake as a test bed to get them into solid state
circuitry.  The
> 'Sherwood mods' were many but the most useful dealt with
very good plug-in
> filters.
>
> There were also some modifications to the mixers.  The
mixer modifications were
> pretty much worthless as far as improving perfomance.
There were also some mods
> to the AGC which ruined an already superbly designed AGC
system.
>
> I own an R4C and T4XC.  The T4XC is stock but the R4C has
been modified with
> power supply, audio amp, noise blanker and filter mods.
The mixers are still
> stock but that might change since it uses a pentagrid as
first mizer.
>
> My modified R4C is still my best receiver.  By direct
comparison, I consider it
> better than the best ICOM currently offers.
>
> Regards,
> Frank Kamp
>
>
>
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>