Voltage-controlled current drain (CB9432E)

This circuit was found in a 90's EDN. The load depends on the used transistor.

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Transistor Monostable (CB18232E)
This circuit can be used as a control shield for microcontrollers of all types. The supply is made...
High Input Impedance LM3900 Amplifier (CB14183E)
The figure below shows an AC transconductance amplifier with the National Semiconductor LM3900. The...
MOSFET Power Stage (CB980E)
This circuit provides a good audio power from a signal at least 1 V of amplitude. The MOSFET must...