Found in documentation from the 1970s, this circuit uses an oscillator and a display to warn of speeding. The circuit applies to cars with contact breaker.
This circuit uses three flip-flops and two NAND ports to obtain a frequency division by 5,...
We found this circuit in Ferranti's 1974 transistor manual. Transistors are general-purpose types...
We can either supply this circuit with 12 V if we use a relay for this voltage as well as 6 V if...