We found this circuit in a 1976 documentation. The FET can be BF245 or MPF102 and the power supply need not be symmetrical. The FET in the feedback acts as an automatic gain control.
TTL square signals can be divided by 10 using this circuit. The maximum frequency depends on the...
This circuit is from a publication from the 50's. Inductive components are critical, and...
We show in the figure how to implement a current monitor circuit using only an operational...