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The ARH Type J-38

The ARH type might be called the stereotype J-38 Key. Note the bakelite base with beveled edges, "J-38", "<--LINE-->", and "<--TEL-->" stamped (engraved?) in white on the base, rear binding posts strapped together and mounted directly on the base, oval frame with a well cast into a bulge in the front to hold the spring, adjustable spring tension and contact spacing with lock nuts, adjustable trunnion screws with lock nuts, anvil strapped to left inner binding post, circuit closing switch that slides under the anvil strap at the front to short circuit the key, and the eye screw on the left rear of the base for attaching the stay cord on the headphones.

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This picture shows the vertical knurling found on all adjusting screws and lock nuts on the ARH type key.

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Here you can see the small positioning pin which fits into the bottom of each rear binding post and through a slot in the shorting strap and into a hole in the base. These positioning pins keep the holes for the connecting plugs in the rear binding posts parallel to the center line of the key.


On the full size picture of this box you can see the price marked in pencil. This key now belongs to John Hensley - WD4RXU.

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Here is a Radio Essentials Incorporated key. It looks exactly like the American Radio Hardware key.


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