Found in a Popular Electronics from the 90s, this circuit presents the difficulty of obtaining the Geiger Tube. The other components are common, admitting equivalents.
This amplifier was found in an English publication from the 60's. The transistors are germanium of the...
The maximum current of this circuit is 1 A. The circuit is from Motorola Linear Interface ICs from...
This circuit can be used to monitor a low frequency source indicating deviations. We found the...