Hi Ron
Thanks,thats good to know
Presumably then, i could play around with the value of VR2 to alter the pulse duration too?
If 47K provides a 5 second pulse and 22k is 3.5 seconds, would increasing the value of VR2 by ~25k equate to adding +1.5 seconds to the pulse duration or is it not linear?
If it is a relatively fixed value, i could replace VR2 with a 12 way rotary switch to add series resistors for a switch selectable Pause duration.
Switchable steps would make it easier to locate the same setting twice than on a fairly coarse preset.
The series resistor tolerances may add a twist or two
Best Regards
Colin