High-speed buffer (CB9556E)

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

Flasher with Transistors (CB5210E)
We found this circuit in an American 1980s documentation. The transistors can be equivalent as BC548...
Voltage Doubler (MSB021E)
Figure 1 shows a hal-wave voltage doubler operating with the Power-supply voltage. Output current...
RIAA Equalizer Amplifier (CB25696E)
This preamplifier circuit for turntable cartridges was found in the March 1994 issue of...