Heinz, This is exactly how Don wired my K2 to key an external amp. The RCA jack is mounted as Don describes. It works. What more is there to say? I forget what the voltage and current ratings are for the 2N7000, but as I remember it will key the majority of amplifiers.
73, Mark, WB9CIF -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Don Wilhelm Sent: Saturday, January 19, 2019 19:44 To: Heinz Baertschi <[email protected]>; [email protected] Subject: Re: [Elecraft] [K2] T-R Driver Circuit to key KXPA100 Heinz, If you have the K60XV option installed in the K2, yes K60XV J2 pin 2 will key an amplifier like the KXPA100. The only difficult part is to find a place for a connector on the rear panel. There is a place near the key jack where you can mount an RCA jack and not interfere with any components on the RF board - keep the jack as close to the top of the lower panel as possible. 73, Don W3FPR On 1/19/2019 2:23 PM, Heinz Baertschi wrote: > > What kind of T-R keying circuit is necessary in the K2 (with K60XV installed > for 60m band usage, no XVTRs connected) to operate the KXPA100 amplifier? > > a) Will the XVTR Keyline on K60XV J2-2 / Q3 (2N7000) do it correctly? > > b) Is a keying circuit like these necessary? > http://folk.uio.no/sverre/LA3ZA/blog/K2/N0SS/k2_t-r_rly_drvr.pdf > ftp://ftp.elecraft.com/K2/Mod%20Notes%20Alerts/K2%20Amplifier%20Keying%20Circuit.pdf > ______________________________________________________________ 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]
