If you are referring to this: http://forum.allaboutcircuits.com/attachment.php?attachmentid=12524&d=1254870511 The 1k resistor and the diode discharge the cap when the switch, to the +12V, is opened. Without the diode, the circuit will output a pulse then the switch is closed...and when the switch is opened.just spotted a possible snag re kens relay circuit, does it need a pb switch in order to work.to enable the cap to discharge.
These will just give you a momentary pulse when the switch is switched....with no delay. That's what mine did.It´s very simple indeed! I think I´ll easily do the task using the ideas you brought and reading this site I´ve just found, it looks interesting
http://www.simprojects.nl/toggle_to_momentary.htm
Which circuit?hi
ive just thrown a relay circuit together, even with a 470 ohm cap and a 10 k resister there is hardly any delay, were looking at a large capacitor
which might create its own problems.
be ok for the second relay i suppose,
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