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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