This circuit behaves as a voltage controlled resistor and can serve as a small load. The circuit is from a Radio Electronics from July 1988.
This circuit for analog video signals was found in a Linear Technology integrated circuit manual. The...
This tuned circuit was found in a 1966 Electronic Circuit Handbook. The transistor can be any...
This Siliconix circuit was found in a 1980s documentation. The coil consists of 18 turns of 22...