This power control for powers up to about 10 W uses wire potentiometers in an arrangement that allows to maintain the impedance. The circuit is from old European documentation.
of the National Semiconductor of 1994. The same technique can be used with other operators and the...
This is an interesting configuration of the LM317 voltage regulator found in an EDN from the 90s....
This circuit is from the datasheet of STMicroelectronics, being indicated for the voltage...