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hi burt,View attachment 89928
I was just thinking about this today would it be usable to use 2 resistors and to diodes a zener to clamp to max of 5 volts like the sch.
What simulator?I was playing with it just to see how it looks in a simulator it's giving crazy reading in mV like -47mV then +47mV
I was thinking without the zener I would read a 0 to 60 volt maybe up to 75 But that's not showing up
Thats what it dose and It shows in the pic But I was thinking Id get half a cycle 0 to a choped peak but its showing it to go below groundI shouldn't but; does the last zener clip the signal?
kv
120mA x 120V = 14.4W !! You'll need a mighty big resistor and a heatsink.R3 should only drop 120 mA
Not possible. If the AC volts are zero then Q1 will be switched off, not on.I'm trying for a short low at At Q1 when the AC line hits zero.