This circuit was obtained in a Maxim documentation from the 90's. The circuit applies to microprocessors of the time.
What sets this transmitter apart, which we found in a 1990 documentation, is the modulation by the...
This General Electric circuit is from the 80's. The PUTs used in this meter are not common...
This game was found in Radio Electronics from the 90s. The components used are common except some...