The Amp Supply Co. AT-3000 is a rare, heavy-duty manual amateur radio (ham) antenna tuner
(antenna matching unit) modeled after the design of the Heathkit SA-2060A.
Specifications & Features
• Frequency Coverage: 160 meters through 10 meters (HF amateur bands)
• Power Handling: At least 3,000 Watts PEP (Peak Envelope Power) all day
• Chassis & Build: Copper chassis with a smooth, repeatable roller inductor
and high-voltage (HV) tuning capacitors
• Front Panel Design: Distinctive red and gray front panel with a gray cabinet
• Built-in Balun: Internal balun included for balanced feedlines
• Antenna/Output Selections:
• 2 Coax outputs
• Longwire position
• Twin-lead / balanced feedline positions
• Bypass switch
• Wattmeter: Built-in cross-needle or dual-scale wattmeter with 2000W / 200W power range positions



