Found in an Electronic Design from 1968 this circuit generates a linear sawtooth signal modulated by an input signal. The transistors are from the era.
With the coded activation of the relays, it is possible to control which of the 16 outputs...
The integrated circuit used in this application is not very common. Transistors and resistors...
This simple circuit makes use of neon lamps to indicate the voltage of a power grid. The lamps are...