[time-nuts] No 1 PPS output on a Tbolt

[Arthur Dent]

An
easy way to see the 10 microsecond pulse

On the
Tbolt is to use a pulse stretcher. I

Used this
circuit on the 25 microsecond wide

Pulse on
the HP Z3801 to add a true 1 second

pulse
indication to the front panel and also

output
the pulse through a 51 ohm resistor to

a BNC
on the back panel. Reducing the value

of the
1 megohm resistor and/or the .47 mfd

capacitor
will shorten the output pulsewidth

and
these values aren’t critical.

 

schematic - http://farm3.static.flickr.com/2679/4351301462_7cd9625a97.jpg