Very strong audio spikes in a headset can damage the ear. This circuit, from a 90s Popular Electronics cuts them, being originally indicated to operate with an integrated amplifier of the time.
The basic component of this circuit is a general-purpose SCR. The voltage is according to the...
This circuit came out in a publication called Electronics Handbook of 1993. The circuit shows how...
One flip-flop of the 4018 can be used as a frequency divider or counter as shown here. Frequency...