ok, running into some problems. Since I couldn't get the dual 555 to work with your diagram, I decided to go to a very basic circuit just to see if I could pulse an LED. Here are the components:
disch -----POT vari resistor---- thres
disch --- 10k res ---vcc+12v
contr v --- .01 uf----gnd
reset-----vcc+12v
gnd --- gnd
output --- 560 ohm res ---- LED ---- gnd
thres --- jumper --- trig
trig --- 100uf --- gnd
I can pulse LED fine and control it with the POT for a 50/50 duty cycle, but when I try to add a connection from output to a 12v relay, (output---relay----gnd) the relay will close on the pulse but when its time to let go it chatters for a half second or so before it releases. I tried putting a diode 1N914 in series with the input lead of the relay to prevent any disconnect feedback but that didn't help..??
disch -----POT vari resistor---- thres
disch --- 10k res ---vcc+12v
contr v --- .01 uf----gnd
reset-----vcc+12v
gnd --- gnd
output --- 560 ohm res ---- LED ---- gnd
thres --- jumper --- trig
trig --- 100uf --- gnd
I can pulse LED fine and control it with the POT for a 50/50 duty cycle, but when I try to add a connection from output to a 12v relay, (output---relay----gnd) the relay will close on the pulse but when its time to let go it chatters for a half second or so before it releases. I tried putting a diode 1N914 in series with the input lead of the relay to prevent any disconnect feedback but that didn't help..??