Buffer with MOSFET (CB26318E)

This boost amplifier was found in a Popular Electroniics from the 90s. The circuit operates up to 20 MHz depending on the coils used.

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Passage Alarm (CB26162E)
This simple optical alarm circuit was found in the 1991 Electronics Experimenter Handbook. The...
4 to 55 MHz amplifier (CB9166E)
This broadband amplifier was found in an Elektor from the 90's. The gain is 10 dB with a noise...
Electronic Dice with the 4018 (CB4630E)
A recreational application of the 4018 is shown in the figure in which we have electronic dice....