Found in a 1967 Electronics World, this preamplifier uses an integrated circuit from that time, difficult to obtain today. The maximum frequency is 15 kHz.
The previous circuit (CB15629E) can be changed to generate a sawtooth signal synchronized...
This is a very simple atomic radiation detector circuit using a Geiger-Muller tube. The circuit was...
With the micro-voltage regulator illustrated in the figure, we can design a power supply for small...