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 is from an old publication from the 90s, but it can be adapted to operate with LEDs....
This squelch circuit used in transmitters was found in a magazine for radio amateurs 73 in the...
daptation of a common multimeter for the measurement of high voltages with high input resistance,...