This circuit is from the Linear Applications Handbook of the National Semiconductor of 1994. Transistors are common, but the integrated circuit is not easy to obtain today.
This circuit is from Motorola's Linear Interface ICs of 1993. The integrated circuit is not common...
The integrated circuit used in this 80's temperature control is not very common today. The load...
Found in a1968’s Burr Brown documentation, this shield uses an integrated circuit from that time,...