Microlights (CB25786E)

With this name the LED effects circuit presented was found in the Electronics Now magazine of December 1994. The circuit is powered by a 9 V battery.

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Microphone Amplifier (CB24945E)
This PA or Public Address amplifier with a few watts of power was found in the March 1986 Radio...
IR tone remote control (CB20972E)
This circuit is from a Popular Electronics from the 90s. The circuit has a tone frequency...
Telephone Line Simulator for Internal Communication (CB18068E)
This circuit is a telephone line simulator and can be used for internal communications. It is...