[Elecraft] TL-922

[Dr. William J. Schmidt]

Yes, the K3 can only handle key out of +200 VDC at 5A...


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

Moderator: North American QRO Group at Groups.IO.
Moderator: Amateur Radio Builders Group at Groups.IO.

email:  bill at wjschmidt.com


-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of James F. Boehner, MD via Elecraft
Sent: Wednesday, March 29, 2023 6:55 AM
To: 'Josep Torres' <ea6bf at aol.com>; 'Elecraft Reflector' <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] TL-922

Josep,

Be sure to install a soft-key interface in the TL-922 before hooking it up to the K3.

https://harbachelectronics.com/shop/kenwood-tl-922/sk-922-soft-key-keying-interface/ 

The newer rigs were not meant to handle the voltages on the older amplifier's keying circuits.

I modified mine with the soft-key board and added the new capacitor block.

'73 de JIM N2ZZ

-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Josep Torres via Elecraft
Sent: Wednesday, March 29, 2023 3:03 AM
To: Elecraft Reflector <elecraft at mailman.qth.net>
Subject: [Elecraft] TL-922

Hi guys,

Have a couple of Kenwood TL-922’s around and was thinking to connect one to a K3.
Has anybody done so.? And if so, how have you done the wiring.? 
Got 2 K3’s (in fact I have 3 of ‘em, but one not physically at now now) and maybe one day I can use the spare one with a TL-922 from another QTH.

Thanks,


73,

Josep
EA6BF
BUG #256  -  CWops #3072  -  FOC #2182 (ex 1724)



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