[Premium-Rx] Collins Mechanical Filters

[Herschel McCullough]

and a small correction.. bandwidth and IF are not the same as we all well
know.. these filters seem to be for something with a 500 IF   not
bandwidth..



----- Original Message -----
From: "Herschel McCullough" <w5mc at austin.rr.com>
To: "CHARLES HUTTON" <charlesh3 at msn.com>; <premium-rx at ml.skirrow.org>
Sent: Thursday, February 26, 2004 8:38 PM
Subject: Re: [Premium-Rx] Collins Mechanical Filters


> Remember the r-388 and or 51J-3  same receiver, and did not use MECHANICAL
> FILTERS .. but did use crystal filters.. while the 51j-4 used MECHANICAL
> filters..  but these filters listed are not for the 51j-4 at least judging
> by the P/N listed , the Bandwidth is about all that is correct.. as is so
> often the case guys lump all Collins filters into the High Value
category,
> while typically the WORTHLESS category is more fitting.. but that is my
> opinion..  mac/mc
>
>
> ----- Original Message -----
> From: "CHARLES HUTTON" <charlesh3 at msn.com>
> To: <premium-rx at ml.skirrow.org>
> Sent: Thursday, February 26, 2004 5:56 PM
> Subject: RE: [Premium-Rx] Collins Mechanical Filters
>
>
> > That would be the R-388 and 51J3 if I recall correctly.
> >
> >
> > Chuck Hutton
> >
> >
> >
> > >From: Greg Bailey <gbailey at mail.sdsu.edu>
> > >To: premium-rx at ml.skirrow.org
> > >Subject: [Premium-Rx] Collins Mechanical Filters
> > >Date: Thu, 26 Feb 2004 14:07:34 -0800
> > >
> > >I've been helping an aging ham clear out some of his old stuff - of
which
> > >he has an astonishing amount! Most is not likely to be of interest to
> > >Prem-Rxers - but ...
> > >
> > >There are three brand new Collins mechanical filters - military origin.
> > >They are one of F500Z11LSB, and two of F500Z10USB. These are - I
think -
> > >500kHz IF LSB & USB filters.
> > >
> > >Does anyone have a clue about the radio they would have been used in?
> > >
> > >Greg
> > >
> > >
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>
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