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Yup. Also, power RF amps are often still today based on (a type of) tubes. Tektronix had some tube-based active probes with up to 850MHz of bandwidth, for use
by labcomputer 5mo ago
Yup. Also, power RF amps are often still today based on (a type of) tubes.
Tektronix had some tube-based active probes with up to 850MHz of bandwidth, for use with equivalent-time sampling oscilloscopes in the early 1960's. The first real-time transistorized scope able to use that bandwidth didn't come along until the late 1970's.