K7ITM wrote:

Yeah, saw that. Trouble is that I need EVEN harmonics


Huh? I thought you wanted to multiply by 18. 18 = 3 * 3 * 2.
Quite right. 18 is an even harmonic of course but I forgot about the
3*3*2 bit


If you were specific about what you want to do with the output, I
missed it.

It's to test a 1296 down-converter basically but will try a CW
transmitter later so a bit of grunt wouldn't go astray.

..... There might already be enough 18th harmonic in the oscillator
output to do what you need.

Could be. AT the moment I have a 2N5485 as the osc and a 2N918 as a
doubler but the 2N918 runs out of puff well before 1296MHz. I have some
BFR91s so I might put them into use.

Cheers,
Tom
73 de Alan