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This circuit was found in a 80’s Popular Electronics. It issues a warning signal with the signal of the old type printer with parallel port.
This circuit was obtained in a Motorola manual, but it applies to almost any operational...
Found in a 1990s Motorola documentation, this circuit aims to protect a triac that drives an...
Found in a 1968 documentation, this small amplifier was very popular at the time being used in...