We found this circuit in a Japanese 1968’s documentation. The circuit makes use of transistors from that country common at the time of publication. Observe the symmetrical power supply for the circuit.
This circuit was found in Sprague Electric documentation from the 90s. The circuit uses a...
This source gently applies the voltage to the load, causing it to rise slowly, thus avoiding...
This circuit was found in 1966 General Electric documentation. The circuit uses components from the era...