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W.T. Wireless Spark Radio Transmitter W/T #1
W.T. Wireless Spark Radio Transmitter W/T #1 from WWI, 1918. This transmitter was used by British aircraft in WWI. It frequently was paired with the Mark III Tuner. The spotter aircraft would signal with the NO. 1 transmitter to someone on the ground using a Mark III crystal receiver.

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Copyright 2003-2004 Howard Stone PhD.
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