On Jul 11, 9:18 pm, "Ed Cregger" wrote:
"wa2rqy" wrote in message

...



On Jul 11, 1:41 am, "Ed Cregger" wrote:
I finally found my old relay box used for keying my amp. I did not find
the
paper sheet that came with it showing the connections. Three connections
must be made, but there are five ports. I have hooked it up in what I
consider to be the logical way, but my radio immediately returns to
receive
when keyed. I seem to remember a trick (alternate hook up) but do not
wish
to damage the radio via experimenting. I'm kind of goofy these days due
to
medications, so I don't trust myself to make the connections by
intuition.
I'm using an Ameritron AL-80A amplifier and a Yaesu FT-890/AT rig.

If someone could make a .jpg of this manual and email it to me via
, I would appreciate it very, very much. Thanks.

Ed Cregger

Or you can follow this?
Relay box marked "TX" goes to amp relay terminal that keys the amp.
Relay box "red" cable connects to 13.8vdc on rig, "Blue" cable
connects to PPT line on rig.
Hope this helps?
Rich WA2RQY/4

--------------

That is how I have it hooked up and is what isn't working. Thanks.

Ed, NM2K

Some radios like the FT-757GX have a "Linear switch" on the back that
needs to be OFF on a non qsk amp.
It is really a simple device, it needs 13.8 volts to activate the
relay, a ptt line sends this 13.8vdc to that internal relay, causing
it to close thus closing the relay line to the amp.
If these situations are satisfied, it should work unless a wire is
open, relay coil bad, etc!
Does the amp key up if you short out the relay line terminal on the
back of
the amp? I had a small microswitch in a cassette box with a wire
coming out. This wire had a RCA male plug & I used it to test all my
amps without even connecting it to a transceiver.
GL.....
Rich WA2RQY/4