<p>Original 1943 electrical trade vintage ad for<b><span style="font-size: 14px;"> STRUTHERS-DUNN, INC. </span></b>Main office and plant was located at 1321 Arch Street, Philadelphia, PA.</p><p> Manufacturers of Dunco Relays. </p><p>Products include Sensitive Relays for Low-Power Uses. Twice tested, balanced to stand vibrations.</p><p>For vacuum tube circuits, for the protection of delicate instrument contacts, for alarm circuits, for exacting temperature control, wherever the need is for dependable relays to operate on very low coil circuit power, you will find Dunco Sensitive Relays unexcelled.</p><p>Relay models 28XAX (high sensitivity) and 29XAX (medium sensitivity) are featured.<br></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 zl533
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