Antenna Tuner Model 247


Matches 50-75 ohm unbalanced outputs from transmitter to a variety of balanced or unbalanced antenna impedances. Antennas such as dipoles, inverted "V"s, long random wires, Windoms, beams, rhombics, mobile whips, Zepp, Hertz and similar types can be matched from 1.8 to 30 MHz. Popular universal Transmatch circuit with one kV capacitor spacing and 46-tap silver plated inductor (pat. pending) allows vernier adjustment up to 200 watts, rf, continuous duty.



  • Circuit: Universal Transmatch.
  • RF Power: 200 watts, continuous.
  • Capacitor Breakdown: 1 kV.
  • Inductor: 47 taps; 18 gauge silver-plated wire; silver-plated tap selector; 2" dia. core.
  • Input Z: 50 - 75 ohms, unbalanced.
  • Output: Matches all loads, balanced and unbalanced (max. balanced load on 160 and 80 meters is 600 ohms.)
  • Frequency Range: 1.8 - 30 MHz.
  • Finish: Etched aluminum chassis and front panel; black textured sides and top.
  • Size: HWD 2-15/16" x 7-3/4" x 6-11/16".
  • Weight: 3 lbs.

QR Code
QR Code 247 (generated for current page)