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Re: [Yaesu] FT-1000D T/R Switching

To: <dgmaley@inav.net>, yaesu@contesting.com
Subject: Re: [Yaesu] FT-1000D T/R Switching
From: W0UN -- John Brosnahan <shr@swtexas.net>
Date: Wed, 02 Jun 2004 10:06:07 -0500
List-post: <mailto:yaesu@contesting.com>
At 09:01 AM 6/2/2004, dgmaley@inav.net wrote:

Good Morning to all.  Worked on this radio last night
and thought I would pass along what I found:
Replaced this diode with a standard 1N4007 power supply
diode.  Seems to work just fine.  I did this after using
the NTE cross reference and noting this is just about what
it crossed to.  I would have suspected this to have been
a spot for a hefty PIN diode, but maybe not.

Actually the 1N4007 IS a PIN diode. Not widely known but it has been used in PIN diode functions on occasion such as T/R switches. I am not sure about the other diodes in the 1N400x series though, although there are some reports that the entire family are PINs.

http://www.ac6rm.net/mailarchive/html/elecraft-list/2003-04/msg00200.html

73--John W0UN


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