Here is the deal. Recently I built a *simple* circuit with a 555 timer using this scheme:
http://www.google.com/imgres?imgurl...=7PV0TcK-IIr3sgao9JyEDg&sqi=2&ved=0CBYQ9QEwAA
However, when I connect the red probe of my voltmeter on pin 3 and the black probe on GND, I get nothing but constant 0.8V. My power supply is ~12V. I have examined the connections and I can`t find anything suspicious.
R1 = 10K
R2 = 390K
C1 = 4.7μF
Any advice appreciated.
http://www.google.com/imgres?imgurl...=7PV0TcK-IIr3sgao9JyEDg&sqi=2&ved=0CBYQ9QEwAA
However, when I connect the red probe of my voltmeter on pin 3 and the black probe on GND, I get nothing but constant 0.8V. My power supply is ~12V. I have examined the connections and I can`t find anything suspicious.
R1 = 10K
R2 = 390K
C1 = 4.7μF
Any advice appreciated.
Last edited: