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The Model TX250 is a 250-Watt line matching transformer for the Model Q-12A with taps for 70- and 100-Volt constant voltage systems. The TX250 is designed for factory mounting in the Q-12A reflector. Connection to system wiring is via 6" color-coded flying leads. Available taps - 70 Volt: 250, 125, 62.5 and 31.25 Watts; 100 Volt: 250, 125 and 62.5 Watts.