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.
We found this circuit in a Hands On Electronics from the 90s. However, the circuit can still be...
We find this efficient emergency lighting system in a 1987 publication. The circuit keeps a...
This circuit was obtained from a Linear Technology manual from the 1990s. The sensor is of the...