This 130 V drive uses an integrated circuit not very easy to find, which is the LM143. The circuit is suggested by National Semiconductor in its 1994 Linear Applications Handbook.
This circuit can be used as a control shield for microcontrollers of all types. The supply is made...
The load used in this experimental circuit is a small incandescent lamp but it can be replaced by...
Found in an American documentation from 1992, this circuit for medium and short waves uses a CI of...