Geiger Counter (CB21199E)

Found in old documentation, this meter has a high voltage inverter for the Geiger tube. The circuit provides signals to a headset.

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Capacitance Multiplier (CB5340E)
This circuit was found in an old manual and can be applied to any operational amplifier. The power...
Control bistable (CB21261E)
This simple control circuit was found in American documentation from the 1990s. | Clique na imagem...
Non-Inverter Amplifier LM675 (CB19036E)
The National Semiconductor LM675 operational amplifier can provide up to 3 A of output current. In the...