[Premium-Rx] Collins Mechanical Filters

[Chuck Hutton]

My memory is now refreshed..... It is indeed the 51J4 that used mechanical
filters. Thirty years take its toll on memory....

Chuck


-----Original Message-----
From: Herschel McCullough [mailto:w5mc at austin.rr.com] 
Sent: Thursday, February 26, 2004 6:38 PM
To: CHARLES HUTTON; premium-rx at ml.skirrow.org
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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