http://www.jinstartech.com/

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Country of Origin: United States

Electronics & Innovation Switchable Transformers very good price

When your test conditions vary—or your load impedance isn't known in advance—a fixed transformer won't cut it. That's where E&I's Locked-On Series shines. These switchable transformers allow users to select from multiple impedance tap settings, providing unmatched flexibility in lab, research, or field environments. Whether you're iterating through different transducers, adjusting for cable lengths, or fine-tuning a load with temperature or material variability, these transformers simplify the process while maintaining high efficiency.

Available models support a wide frequency range and up to 1 kW of peak power output, making them ideal for demanding RF energy applications. For added functionality, optional models include forward/reverse power display and hot-switching capability—allowing you to change tap settings without shutting down the system.

• Selectable impedance taps: 6 Ω to 800 Ω
• Frequency coverage: 500 kHz - 5 MHz
• Peak power handling: up to 1 kW
• Actively cooled for stable, continuous operation
• Optional “D” models with VSWR metering
• Optional “H” models with live-load switching (no power-down needed)