Antenna Tuner Model 238A


Modified, reversible "L" network matches broad range of impedances with no false resonances. Handles 2 KW max. Built-in lighted meter (external 12 VDC required) monitors forward power on 200 or 2000 watt scales and SWR. Four position antenna switch for coax, single wire, or balanced line using built-in balun.

Note: Same as Model 238 but with a new, charcoal grey case.


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Additional Information


  • Circuit Type: Modified "L" Network
  • Maximum RF Power: 2000 watts
  • Frequency Range: 1.8 to 30 MHz
  • Output Matching Range: At least 10:1 SWR, any phase angle, 1.8 to 30 Mhz. 3000 phms maximum at full power.
  • Input Impedance: 50 ohms, nominal
  • Capacitor Voltage Rating: 3.5 kV
  • Inductor: 18 uh silver plated roller inductor
  • Size: HWD (in inches) 5.5 x 13 x 11 (14 x 33 x 28 cm)
  • Weight: 10 lbs (4.53 kg.)

QR Code
QR Code 238a (generated for current page)