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Keeping an LED lit

Parkview

Nov 19, 2009
1
Joined
Nov 19, 2009
Messages
1
I have managed to build a breadboard circuit where a radio signal will lite up an LED, but the problem is the LED goes out when the signal stops. I would like the LED to remain on until I press a reset button or something along this line. Can anyone help me? Thanks
 
Last edited:

neon

Oct 21, 2006
1,325
Joined
Oct 21, 2006
Messages
1,325
LEDS needs minimumn voltage to be seen along with minimumn current. believe this a led which is basically a diode doesn't lite up with RF frequency if it does and you see it is bogus your eyes cannot see 20kc but see into the visible spectrum in microms from 0.70 to 0.40 microms and that is what a led produces as an output. live and learn
 
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