Quote:
Originally Posted by Ether
The date of your post is 11/05...
Has anyone has built one of these lately? Where did you get the parts and what was the total cost?
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Parts are Radio Shack, cost was about $15 including a nice little case. Can be less fancy if you have a good junkbox.
Quote:
Originally Posted by PAR_WIG1350
Why do you need a dual timer? Most circuit I have seen use a 555.
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One timer generates the pulses every x milliseconds, the other varies the output pulse width from 1 to 2 mSec. If you try to do both with a single timer you end up varying a parameter you don't want to vary. Plus, a 556 is really no more expensive than a 555...