If the RC on Pin 4 were useless then it can be take away and just connecting pin 4 to+12V.Have looked into the extra switches and you're going to have to make a timer with transistor for each switch, like in post#88, this will make sure it pulses in the Off position,
The drawing you made in post#101 wont pulse in the centre position for the second switch as its not got a transistor to it.
Also the diode that Scott was on about goes across the 1meg resistor on pins 4,8 its to discharge the the 1uF capacitor faster on pin 4.
I said take away because the TS said it didn't work, and if he didn't care about the time, even the parts D6 and R9 also can be take away, less parts less problem.Scott wang, he needs the RC on pin 4 to prevent pulses on power up, with the values i gave him it should be about 1 second.
The TS tried your RC and doesn't work, but didn't try my suggestion, so I said take all of them away.It doesn't work because the diode is across the WRONG resistor, it should be the 1 Meg.
No no, I must have not been clear, sorry about that, it did work, but what I was doing was plugging back in the power supply too fast, I found if I waited a short time and plugged it back in then the pulse was NOT sent on power up.I said take away because the TS said it didn't work, and if he didn't care about the time, even the parts D6 and R9 also can be take away, less parts less problem.
Then if you take that RC away and connecting pin 4 to +12V, and try to waiting for 5~6 seconds as you did, when you power up again to see does it has the pulse appear again?No no, I must have not been clear, sorry about that, it did work, but what I was doing was plugging back in the power supply too fast, I found if I waited a short time and plugged it back in then the pulse was NOT sent on power up.
Sorry I must not have been clear enough