The A3 Family of RF amplifiers covers the 10-kHz to 3-MHz frequency
range with three models: the 800-W 800A3, 1,500-W 1500A3, and the
5,000-W 5000A3. Each amplifier has selectable output impedance from 12.5
[ohm] to 400 [ohm]. In addition, an external impedance matching
transformer is available for applications requiring from 8 [ohm] to
2,000 [ohm]. Together with selectable output impedance, a large
tolerance to mismatch accommodates applications including fluorescent
lighting, ultrasound, plasma generation and testing, and piezoelectric
crystal excitation. AR RF/Microwave Instrumentation,
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