Chen Dave The KTCXO-1 is a TCXO (KS Electronics P/N1099 ) so pin1 = VCTRL is not connected internally.
You will need a VCXO or even a VC-TCXO to implement the external ref PLL. Jan SM6TUW ______________________________________________________________ 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

