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One of the first varactor parametric amplifiers, invented at Bell Labs around 1958. This 4 stage amplifier achieved 10 dB gain at 400 MHz. Parametric
One of the first varactor parametric amplifiers, invented at Bell Labs around 1958. This 4 stage amplifier achieved 10 dB gain at 400 MHz. Parametric amplifiers are used in applications requiring extremely low noise.
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Australian market band I-III-U television tuner with varicaps highlighted
Australian market band I-III-U television tuner with varicaps highlighted
Consumer AM-FM broadcast tuner with varicaps highlighted
Consumer AM-FM broadcast tuner with varicaps highlighted