Phil, AD5X, has an article on a T/R switch at:
http://www.ad5x.com/images/Articles/QSKBArevA.pdf
I've built it and it works FB.
As far as why one would want to do this: It's just downright "fun" to
build a homebrew tube rig, for QRP or otherwise, and to restore a
vintage transmitter. If we already have a good, modern transceiver in
the shack, then half the problem is solved.
I've had much fun with my Xtal controlled 6C4-5763 rig, chirps and
all....
73, Stan WB2LQF
On Thu, Oct 23, 2014 at 12:18 AM, Don Wilhelm wrote:
Eric,
Although I am not certain why you would want to do that, it can be
done - Elecraft gear offers seamless transceive operation all by
itself, so I do not understand the fascination with an external tube
type transmitter. OTOH, if you really want to do that --
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