This circuit is from the Motorola LinearDatabook of 1990. It shows how it uses the LF355, 356 and 357 operational capacitive loads. The power supply must be dual.
This circuit whose transistors depend on the lamp current was found in Radio Electronics magazine from...
The circuit used is not common today, as the configuration is from 1994. The circuit is from the...
Based on an LM36000 OTA this circuit was found in the July 1988 issue of Radio Electronics...