High-speed buffer (CB9556E)

Found in a 1980s documentation, this circuit makes use of components from that time. Modern equivalents can be tried out.

Alternating Current Electrolytic (CB4613E)
We can use high value electrolytic capacitors in alternating current circuits with the...
Transistors as Rectifiers (CB18958E)
In the figure we have the way to use power transistors as rectifiers in a source, replacing common...
Measuring low frequencies (CB25989E)
This circuit can measure frequencies up to 10 kHz using a digital multimeter or the 7107. The...