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Re: 555 timer circuit 1Hz to 20Hz



Original poster: stork <stork@xxxxxxxxxxxxxxxxxxx>

Hi Dave,

Here are a couple of urls:

http://www.uoguelph.ca/~antoon/circ/pwm555.html

http://www.cpemma.co.uk/555pwm.html

Stork


Original poster: David Thomson <dwt@xxxxxxxxxxxx>
Can someone direct me to a 555 timer circuit that is tunable in
pulse duration as well as pulse frequency from 1Hz to 20Hz?