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Struthers-Dunn Inc 1943 vintage electrical ad relays contact pressure

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<p>Original 1943 electrical trade vintage ad for<b><span style="font-size: 14px;">&nbsp;STRUTHERS-DUNN, INC.&nbsp;&nbsp;</span></b>Main office and plant was located at 1321 Arch Street, Philadelphia, PA.</p><p> Manufacturers of Relays.</p><p>Contact Pressure Lifts 15 Times the Relays' Weight! Dunco's Little Giant of the Relay Field.</p><p>Ordinary relays weighing, say, one pound, may give a contact pressure of 3 or 4 ounces. By comparison, the Struthers-Dunn Series 61 DC Relays give 7 pounds contact pressure in a unit weighing only 7 ounces. Moreover, these famous Dunco "Nutcrackers" are especially designed to withstand shocks and vibrations, and to operate faithfully without an enclosure in dirty or dusty places.</p><p>Unbound from a 1943 electrical engineering magazine, this unique old one-page advertisement would display beautifully matted and framed. Nice graphics.&nbsp;World War 2 propaganda. A fabulous addition to your retro electrical library.<br></p>
    • Mfg Part # zl537
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