Buffer 4049 (CB26316E)

The purpose of this circuit found in a 1990s Popular Electronics is to increase the current capability of CMOS stages.

741 Sine to Rectangular Converter (CB13875E)
This circuit, in addition to transforming a sinusoidal signal into a square, shifts its phase. The...
Differential Amplifier (CB19241E)
The transistors on this circuit can be the BC548. The circuit is from English documentation from...
Voltage Doubler (CB20196E)
In the figure we have three voltage doubler configurations that can be used in high and low...