[time-nuts] HP Z3801A Sale

[Hal Murray]

golgarfrincham at yahoo.com said:
> About 10 years ago I added a true ~200ms PPS LED to existing holes in the
> circuit board on the front panel plus a BNC connector to bring the same TTL
> level signal out the back of the unit. 

Would you please say more?  Or post pictures?

Where did you find a 200 ms PPS pulse?


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