Thread: One shot timer
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Old 1st Nov 2017, 10:10 am   #1
Ambientnoise
Heptode
 
Join Date: Feb 2006
Location: Marlborough, Wiltshire, UK.
Posts: 915
Default One shot timer

Sometimes a one shot timer is very useful, for example to control a heater or battery charger which you might forget to turn off. Another thread mentioned an old kettle with no automatic off for example.
This old idea ( not mine, I think I saw it on the SMVP0 website ? ) may not suit the kettle but is useful elesewhere.
Simply put, modify one of those plug in timers with the push in segments so that the "clock" motor is powered from the output side, not the input.
Then set the segments for the time reqd, turn the dial till it just comes on and away you go.
On the timers I have done, it was obvious what needed modifying once it was opened.

Ken
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