Tektronix Catalog April 1966 – Vintage Oscilloscopes & Spectrum Analyzer Manual

Tektronix Catalog, April 1966—official company manual featuring comprehensive listings of oscilloscopes, plug-in modules, spectrum analyzers, and test equipment. Highlights include models such as the R422 (DC to 15 MHz), 453/R453 (DC to 50 MHz), storage oscilloscopes, and high-frequency plug-ins like 1L20 (10 MHz–4.2 GHz) and 1L30 (925 MHz–10.5 GHz). A must-have collectible for vintage electronics enthusiasts, lab historians, and Tektronix collectors.

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