Or integrated circuit used in this circuit two years 80 and little common in those days. The two component heats depend on the triac trigger characteristics.
We found this circuit with an operational transconductance amplifier in the Motorola Linear...
We found this circuit in the 1994 Linear Applications Handbook by National Semiconductor. The...
In the figure we have a differentiator with the LM3900 transconductance amplifier. The circuit is...