[time-nuts] reference oscillator input circuit

[jimlux]

John Ackermann N8UR wrote:
> Wenzel has some discussion and circuits at:
> http://www.wenzel.com/documents/waveform.html.
> 
> The Shera GPSDO made clever use of the input circuit of a 74HCT4046 PLL 
> chip for squaring.
> 
> John
> ----
>

Doh... I was thinking that there was some vendor with ap notes on stuff 
like this, and I couldn't recall who it was, and I'm actually looking at 
a Wenzel OCXO sitting here on the desk.