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HI JC,
Thanks for that. I added the capacitor since from seeing it on another forum but thanks for the tip. Board is all working fine again. 555 timer was broken along with a couple of other components, built a tester and this showed it was faulty.
Thanks for the help.
case closed:)
Kev241.
555 negatine
Hi ian P.
Thanks for the reply. So the circuit attached should work fine with the capacitor connected to negative 5 v and pin 8 and 4 to GND and pin 1 at the lowest potential ie -5v.
Just want to be sure as im a bit of a novice at this.
Thanks again.
555 timer power supply
Hi I hope someone can assist me with a small design question regarding a 555 timer IC.
Can a 555 ic be operated using a negative power supply? with the the usual positive voltage connected to ground?
I was given a circuit to power a 555 ic using a -5v connected to pin...
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