hi! i need a schematic of a monostable multivibrator, and use it like a timer,
example when i trigger it i want to turn my led on for 10 sec then turn off ( thats a monostable isnt it? )

i made some research and i found this link, i tried it but no luck didn't work,

http://www.ecelab.com/circuit-monostable.jpg


if u could give me a working schematics ( analog, i dont want to use ic555)
thanks!







i already made a analog stable multivibrator to control my dc motor and it works fine with pwm....

 

Ckt looks OK to me, but here are some oldes, all tried. Seems that there are some missing values, first 2N3904 collector- 2.2k, Rx approx. parallel combo of 1m & 2m.

 

The other one, all reported as tried.

 

okei! thank you so much! i did one of your schematic and i think it works ( cuz when i touch with my finger "the trigger" then the led turns on for 10 sec then turns off )


now i want to trigger the astable multivibrator with this