Oscar, Looking at the FL-2100z schematic (*** NOT *** the original FL-2100B) shows that the relay line is about +18V DC. You should be able to use "Key Out" directly but since there are multiple relays involved, I would recommend a buffer like the Ameritron ARB-804 or an intermediate relay for safety.
Note: the original FL-2100 and FL-2100B had negative voltage on their key line and require a relay/buffer when used with the K3. 73, ... Joe, W4TV > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Saturday, March 27, 2010 4:41 PM > To: [email protected] > Subject: [Elecraft] [email protected] > > > I need to connect my amplifier fl2100z with K3, direct > connect to key out to RY the amp FL2100Z or I have to put a > relay, please i need help and thank you very much.- > > LU1XS, Oscar > ______________________________________________________________ ______________________________________________________________ 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

