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Orin Eman orin at wolfenet.com
Tue Sep 29 19:29:05 GMT 1998


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> You'll have to upload this to the ftp site... majordomo doesn't
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> Orin, list admin.

> Forwarded message:
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> > Here is a postscript file with an all digital pulse doubler. You can use GSview
> > (ghost view) to look at the schematic. There are some issues, to get a non ground
> > reference (AC) output, just put a cap in series with the output gate. If
> > necessary, the circuit can be easily modified to generate a 50% duty cycle output
> > that is not referenced to the onboard oscillator. Remember, the pulsewidth of the
> > output circuit will be 1 oscillator cycle wide at a frequency of 2x the input. The
> > osc can be anything you can find, we use the X043B series of canned TTL
> > oscillators. They always start, regardless of temp.

> > There is also a D flip flop configured for a divide by 2.

> > (See attached file: P_dblr.ps)
> > Let me know if you have  any questions or problems

> > Joe D.


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> <snip>




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