The setting of this power supply is only 0.1%. We found it in a 1969 US documentation. Transistors may be current equivalents. Note the use of symmetrical power supply.
Found in an Electronic Design and 1970s, this circuit uses transistors of the time. The...
We found this circuit in a 1967 Electronic design. However, it can be easily implemented even...
A rectangular signal can be generated with the figure setting. The values given in the circle...