[time-nuts] RFTG-m-XO disassembly photos

[Dr Bruce Griffiths]

John Ackermann N8UR wrote:
> The 15MHz out surprised me to.  I haven't traced out the circuits but
> from a couple of the components, I am guessing that they do something
> like take the 3rd harmonic of the 10MHz OCXO and dividing that by 2.
>   
John

That is not likely to be the scheme used, as there appears to be no 
30MHz bandpass filter.
The alternative technique of dividing the 10MHz by 2 and then extracting 
the 3rd harmonic of the resultant 5MHz square wave is more likely.

Bruce