This transmitter modulator amplifier for the 11-meter band (CB) was published in Radio Electronics magazine in November 1961. The circuit is for use in a car transmitter.
This time base circuit for the oscilloscope was obtained from an Electronics Now from the 90s. The...
This is the traditional configuration of a high-pass filter with an operational amplifier, such as...
Found in old American documentation, this receiver receives modulated infrared signals and...