Be careful with the TL-922. An unmodified TL-922 has about 100VDC on the keying line. I'm not familiar with the K3 so I don't know if its keying circuit can handle that voltage/current.
I would check the K3 manual for its keying circuit specifications and also measure the TL-922 keying line voltage. You may need a keying line buffer (small relay or solid state high voltage transistor) between the K3 and the amp. *Ken* *WA2LBI* On Wed, Mar 29, 2023 at 4:05 AM Jim Brown <[email protected]> wrote: > On 3/29/2023 12:02 AM, Josep Torres via Elecraft wrote: > > Have a couple of Kenwood TL-922’s around and was thinking to connect one > to a K3. > > Hi Josep, > > I don't know that amp, but I've got K3s that I've used with both > Elecraft and non-Elecraft amps -- three different Ten Tec models, an > ACOM, and an Expert. In all cases, it was a matter of figuring out what > pin on what connector puts the amp in TX mode, and using the Power > setting on the K3 to set drive level. For all of those amps, a simple > through cable from the K3 Key Out jack to the amp Key In worked. In > general, the manuals for both K3 and the amps are our friend. > > You've got a great station -- I'm near San Francisco, and we've worked > on CW on 160, 80, and 10! Not an easy path. > > 73, Jim K9YC > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
