This cascade circuit was obtained from old Signetics documentation. The circuit makes use of special neon lamps that act as valves. Observe the high supply voltage.
This circuit is suggested by the Optoelectronics Sourcebook by Texas Instruments when AC signals...
This circuit was found in 80's Popular Electronics. Transistors are commonly used. The...
When the power is turned on, the output of this circuit goes to the “1“ logic level by a time...