George W. Conkling |
Those familiar with the Auto-Dots will see basic construction similarities with The Conkling Key. They all used brass parts mounted on a wooden base with a heavy metal sub base. The Conkling Key was sold and advertised separately from the Auto-Dots by George Conkling in 1908 during the time he was Delany's G.M. His address was the same as what was listed for him in the Delany Tel. Transmitter Co. ads that year. Even though it was advertised as "The Conkling Key," neither Conkling's name or the familiar four-leaf clover logo of the Delany Tel Trans. Co. are stamped on this key. The depth of Conkling's influence in this key design is unclear. The Key is stamped "Pat. Applied For" but a search of patents show that none were issued to George Conkling for any invention. The patent was granted to his brother, De Witt Conkling, and F.W. Smith of New York.
The reason for the rarity of this key is unclear. The $10.00 price tag was certainly competitive with the all mechanical semi-automatic transmitters being sold at that time. The key may have worked fine on different circuits in good conditions, but being powered from the line may have actually been its weakness. Line current was necessary for basic adjustments. And unlike the electro-mechanical designs that were powered by a stable local battery, an operator of a Conkling had to chase fluctuating line currents in poor conditions to maintain the oscillation of the armature. The simpler all mechanical transmitters obviously prevailed.
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published in the July 2005 issue of "The AWA Journal," the quarterly journal of The Antique Wireless Association. ( A nonprofit historical society ) |