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100k-6GHz Dual Port Network Analyzer Antenna Impedance Matching Cable Filter

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Multifunction Installation Tester DT-6650 With Insulation Resistance, Earth Resistance, Loop Impedance, Voltage,RCD, PFG PSC

V35-A 15 Inch Professional PA Speakers 15 Inch Professional Audio Equipment with 4ohm Impedance

2pcs TD Class Active 1500W High Power 4-Channel Amplifier 8ohm Impedance for Large Stage Concerts and Outdoor Performances

For 6P1 push-pull amplifier, a pure tube amplifier. Rated output power: 12W+12W, output impedance: 4-8Ω

AW07A antenna analyzer, shortwave UV frequency antenna standing wave measurement, 160M 1.5-470MHz RF impedance

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HDL Quality Active Two-Way 30-A Line Array Module 2200 Watts Outdoor Stage Concert Speakers at 8 Ohm Impedance