Well, I'll be darned. My Corsair II schematic shows that K1, too. I still
can't hear it, though. I haven't looked on the board to see if it really is
there in mine.
Mike
----- Original Message -----
From: Robert Weingaertner <weingaertner@nac.net>
To: <JimN0OCT@aol.com>
Cc: <n4lq@iglou.com>; <tentec@contesting.com>
Sent: Saturday, September 18, 1999 6:21 AM
Subject: Re: [TenTec] QSK clicking
>
> Actually there is a T/R relay, at least in the Corsair I. It is K1
> located on the low pass filter board. According to the manual:
> "The final amplifier is disconnected fromthe antenna circuit during
> receive by relay K1. Switching of the receive antenna is performed by
> switch Q1 and diodes D1 and D2. This allows extremely fast switching
> of the antenna and permits full break-in operation on cw."
>
> On the Paragon I, two relays are used, K1 and K2 in the transmitter
> and receiver antenna paths, respectively.
>
> Apparently, the use of reed relays was a more economical or efficient
> choice than PIN diodes capable of handling 100 W. Anyway, they work
> fine for me. I never had and trouble with them, and they are silent
> unless you really listen carefully for them.
>
> 73 all, Bob WB2VUF
>
>
> JimN0OCT@aol.com wrote:
> >
> > In a message dated 17-Sep-99 05:23:17 Central Daylight Time,
n4lq@iglou.com
> > [Steve Ellington] writes:
> >
> > > This little relay
> > > has been used in most TT rigs since ancient Tritons roamed the earth.
> >
> > I beg to differ here. It was used in the Argo 505, but not the 509 or
515.
> > The Corsairs didn't have a T/R relay, either. All diode T/R.
> >
> > How about the Omni-A/B/C and Paragons? Never owned one of those.
> >
> > Jim
> > NØOCT
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