[Collins] 75S3B info

[Martin Sole]

I think Glen raises an interesting point. Do they last forever? Disclaimer:
I have no hard laboratory spec measurements to back this up but...
I have tried a number of S line SSB filters in my 75S3B. For the most part
they all 'sound' the same but some do 'sound' different. Unmatched (see I
said it wasn't very scientific) tests with a tracking generator and analyser
show different pictures of the pass band for different filters. Not to say
they are not all in spec but just wondering if age might play a part.

Signed
Curious


73
Martin, HS0ZED
 

-----Original Message-----
From: collins-bounces at mailman.qth.net
[mailto:collins-bounces at mailman.qth.net] On Behalf Of Glen Zook
Sent: 25 June 2005 08:47
To: David Thompson; collins at mailman.qth.net
Subject: Re: [Collins] 75S3B info

Collins filters use air and not any type of foam. 
Therefore you don't have to worry about the foam disentigrating.  Unless
they are dropped, Collins mechanical filters normally last "forever".

Glen, K9STH


--- David  Thompson <thompson at mindspring.com> wrote:

Don't know about collins but I had a KW 2000E with a Kokusai 455 filter. The
KW 2000 series was the RAF/RCAF version of the KWM2.

Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco


		
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