cool. this is just regular led flasher circuit with resistor what set speed of flashing replaced by potenciometer and led is replaced with speaker? am i right?
i bought from maplins this lil kit with 2 leds flashing and you can controll the rate at whitch they flash with a potentiometer this uses a 555 timer and with a speaker attatched instead of an led it acts like ures but the problem is even when its flashing the fastest its still a very low sound if i got a pot with less resistance would the slowest rate of flashing (and fastest) go up or is something else needed? i hope this makes sense :-(
it isnt on the maplins website anymore i can only find one with no 555 but if its any help here is a link to the video i had of it so far so u can see my problem and also how its similar to yours (make sure u read the desscription). thanks 4 the help ive only recently got into electronics n stuff
replace that potentiometer with a photocell
humxa24 7 months ago
cool. this is just regular led flasher circuit with resistor what set speed of flashing replaced by potenciometer and led is replaced with speaker? am i right?
PS: Nice vid!
SKMatoBB 1 year ago
The clicking in the beginning reminds me of the sound of the indicator light relay of a SAAB 900...
Riskteven 1 year ago
how many farads has that condenser??
Greenselves 2 years ago
22uf I think. I'm not sure. This video was posted a very long time ago
davidbball13 2 years ago
i bought from maplins this lil kit with 2 leds flashing and you can controll the rate at whitch they flash with a potentiometer this uses a 555 timer and with a speaker attatched instead of an led it acts like ures but the problem is even when its flashing the fastest its still a very low sound if i got a pot with less resistance would the slowest rate of flashing (and fastest) go up or is something else needed? i hope this makes sense :-(
jimmybobson123 2 years ago
could you send me a link to the kit. I could teach you how to modify the circuit to do other things
davidbball13 2 years ago
it isnt on the maplins website anymore i can only find one with no 555 but if its any help here is a link to the video i had of it so far so u can see my problem and also how its similar to yours (make sure u read the desscription). thanks 4 the help ive only recently got into electronics n stuff
jimmybobson123 2 years ago
Sounds like a Cox engine !
o0JohnnyReb0o 3 years ago
GeigerMüller tube XD
FateOX 3 years ago
boy david you did it again you are SO smart if only i had a man to call my own
hershe33 3 years ago