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Author Topic: How's the delay happen?  (Read 601 times)
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http://www.talkingelectronics.com/projects/200TrCcts/101-200TrCcts.html

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Capacitor gets charged up via the resistor -> voltage level displayed by the leds.

capacitor discharged via the diode.
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ah, so the 555 slowly pulse charges the cap?.. but the diode, unless i'm getting it back to front, it's only allowing a 0/gnd/neg voltage to pass through the diode... or is that purposely done
to allow a little current to pass to the base ?


finally got it smiley - the diode threw me off, the cap is also in series with the transistors smiley  thanks!
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Anaheim CA.
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An Extremely Primitive A to D converter. Cute circuit though.

Bob
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