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Palstar AT4K 2500W

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Palstar AT4K 2500W

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Quick Overview



  • The word is spreading about Palstar's unique, high-end amateur radio products. Carrying on in the Palstar tradition for products of the highest quality designed by Hams for Hams. The American made AT4K tuner is no exception.
  • The American made AT4K is an impedance matching network that fills the void for a matching network that can provide unbalanced/balanced output. This is a one-of-a-kind unique dual-function high-power tuner in the American Ham tradition.The typical unbalanced tuner with a 4:1 balun at the OUTPUT exposes the balun to a wide variety of impedance and reactance that it was never designed to handle. The solution: the AT4K. The AT4K T-matching network utilizes a 1:1 unbalanced-to-balanced transformer in the INPUT of the network. When the network is properly tuned, a 50 ohm impedance will be presented both to the input and output of the balun, which allows it to properly perform its important transformation job.


  • Power rating 2500 watts single tone continuous
  • Unbalanced/Balanced output (switch activated on front panel) with high power balun at the input of tuner circuit
  • T match circuit: impedance matching range 8 ohms to 2000 ohms
  • Custom large value (460pf) variable capacitors at 6 kV
  • 10 Amp silver plated ceramic body roller inductors crank handle driven
  • Switchable antenna inputs with 10 Amp RF switch assembly
  • Ferrite 1:1 input balun
  • Peak and Peak Hold dual cross-needle metering (1-2 sec hold) with backlighting (wall transformer supplied)
  • Powdercoated front panel and top cover
  • Dimensions: 15" wide x 7" high x 16"deep
  • Weight: 20 lbs

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