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.
This circuit was originally found in a Philips documentation from 1969. It is intended for sensing...
This circuit is obtained from old documentation, activating it when there is a power cut in the...
This circuit is from a 1977 application manual for timers. The circuit provides a negative pulse...