[time-nuts] No 1 PPS output on a Tbolt
Arthur Dent
golgarfrincham at yahoo.com
Fri Feb 12 13:28:48 UTC 2010
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
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