This circuit was obtained from a 90s Radio Electronics. The value of R1 determines the scale according to the table next to the diagram. The power suppley must be symmetrical.
This circuit was taken from a Popular Electronics from January 1967. Transistors are from the...
Found in a 1967 publication by General Electric, this SCR circuit generates voltages of 120 VAC at...
The critical point in this project is the adjustment of the optical system, mainly to avoid...