Unlike the previous circuit, the output of this one goes high in the window voltage range. The circuit is from Radio Electronics from June 1986 and is based on the CA3140.
An interesting circuit suggested to indicate when a device is turned off. In the figure we have...
This electronic defense generates a high voltage discharge capable of intimidating an attacker. The...
) This circuit was obtained in 1965 General Electric documentation. SCRs can be modern common...