My advice Dan is to run a 2nd wire to control the switching.
That was the first thing I did with mine.
See: http://www.dj0ip.de/ten-tec-stuff/405-keying-mod/
73,
Rick, DJ0IP
(Nr. Frankfurt, Germany)
May the Sunspots be with us!
-----Original Message-----
From: TenTec <tentec-bounces@contesting.com> On Behalf Of Dan Presley
Sent: 21 February 2019 03:59
To: "tentec" <tentec@contesting.com>
Subject: [TenTec] 405 amp
Anyone have any experience in servicing this little 50W amp? I picked it up
with a nice 509 but the RF sensing changeover has stopped working. I have a
maul (not service) with a schematic but any advice appreciated. Thanks.
Dan Presley N7CQR
n7cqr@arrl.net
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