[Elecraft] TL-922

[Mark Musick]

Per the K3 manual page 17 the K3 can key +200VDC @ 5A.
No need to have a key line buffer if the amp keying voltage and current meet those specs.

73,
Mark, WB9CIF

-----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 11:55
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://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fharbachelectronics.com%2Fshop%2Fkenwood-tl-922%2Fsk-922-soft-key-keying-interface%2F&data=05%7C01%7C%7C3477a90435fe4f56f8db08db304cb2c8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638156878191285160%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=CtTlkUMq2f5c%2B0nckmeEK0YKKnhuYA1WQzNFfEbCFbo%3D&reserved=0 

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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