This circuit is powered by the source of the equipment under analyze. We found this configuration in a 1974 documentation.
This source allows the supply of laser diodes with voltages above 11 V. The circuit is from French...
This circuit decodes a two-bit value into four outputs (one of four). The circuit must be powered by...
Found in a 1967 Electronics World, this preamplifier uses an integrated circuit from that time,...