"Mike W" wrote in message
...
GM Folks,
My 10Mhz TCXO that I use for a frequency counter timebase has gone
toes up and I only have a 5Mhz one available to replace it. Can anyone
offer ideas to double the 5 Mhz TCXO keeping the M:S ratio accurate
enough for use with the frequency counter ?.

The 5Mhz TCXO has an output of 2v P-P sinewave into 50R and I need TTL
level 50:50 M:S at 10Mhz.

You could use a diode doubler with a tuned 10 MHz amplifier.

73, Leon