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• 02:05, 19 December 2023 Peter talk contribs created page 1311-A (Created page with "The '''General Radio 1311-A Audio Oscillator''' is a transistorized Wien-bridge audio oscillator with transformer output. ==Specifications== * 11 fixed frequencies – 50, 60, 100, 120, 200, 400, 500, 1000, 2000, 5000, 10,000 Hz selected by rotary switch. A vernier provides a ±2% adjustment about nominal. * Power: 1 W into matched load. (Taps provide at least 0.5 W output into any resistive load between 80 mΩ and 8 kΩ). * Voltage: Continuously adjustable from 0 to...")