David  Josephson,


Got it working.


Input at Point A 1.3 v 8 usec period. 1.4 v 10 usec 1.52 v 11 usec
1.6 v 14 usec

1.81 v 32.5 usec

It quits about 1.9 volt

The pot is 5K

More later. I need something like 100 usec

May not be able to make it go that slowly with that circuit. Maybe use a
capacitor bigger than 330 pf at pin 5 to shift the whole range down. Try
the circuit in fig 15 of the TI data sheet instead.

David Josephson


OK Thanks David.

More shortly.

Paul Lamar

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