<p>Original 1943 electrical trade vintage ad for <b><span style="font-size: 14px;">GENERAL RADIO COMPANY. </span></b>Main office and plant was located in Cambridge, MA</p><p> Manufacturers of Oscillators. </p><p>A satisfactory power source is prerequisite to electrical measurement at any frequency. The wide range of frequencies used in electrical communication systems cannot conveniently be covered in a single instrument. Even for different types of measurements at the same frequency, power sources of different characteristics are often needed. To meet these needs, the General Radio Company builds a number of oscillators covering frequencies from a few cycles per second to hundreds of megacycles. Single-frequency, multiple-frequency, and continuously variable models are available.</p><p>Unbound from a 1943 electrical engineering magazine, this unique old one-page advertisement would display beautifully matted and framed. Nice graphics. World War 2 propaganda. A fabulous addition to your retro electrical library.<br></p>
- SKU zl432
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