Yes that is correct, the number I have is 80853. It allows the relay
on that board to connect the coil to the T/R line and the other end of
the coil to connect to +12VDC. There is a diode across the coil for
back EMF. The relay contacts are connected to a RCA connector on the
rear thus providing a closure when the T/R line is in transmit mode.
I would comment......the Argosy does not provide any delay between key
closure and RF output. This WILL cause hot switching of any amplifier
being controlled by the T/R relay and subsequently the amplifier.
Also the Argosy is always in full QSK mode thus the relays will operate
with every key closure.
One can use a reed relay or like to handle the switching for SSB as
there is little likelihood when using manual PTT. For SSB VOX and CW,
be assured that hot switching will take place. I am not aware of
any method to delay the RF output after key closure.
73
Bob, K4TAX
On 3/6/2020 10:06 AM, John W. Farler wrote:
As I recall, Ten Tec made a relay accessory that fit inside the radio to key an
amp or other device. The one I had years ago already had it built in to my
surprise.
I don't know whether you can't find the circuit or not, but it wasn't very
complicated. I believe it attached to a phono Jack in the back. Maybe someone
on the list has more info and can provide the circuit. I'd look inside to make
certain it's not already there.
Regards,
John, K4AVX
Date: Tue, 3 Mar 2020 12:19:12 -0600
From: "Richard C. Doolittle" <houseinlittlewoods@gmail.com>
To: tentec@contesting.com
Subject: [TenTec] Argosy with Linear
Message-ID:
<CAP1B=Suu7iXeoAZCPW0=6WZ1YkwD-iFHCVd4HmX5J1qaAyDn9Q@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Anybody have experience using the Argosy to drive a linear? Interface
required?
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