Antenna Tuner Model 238

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.

• eHam

• Dial Cord Replacement
• Eliminate the Need for 12v or Unlimited Bulb Life!
• N6IE High Power Improvement Mod
• Many owners have replaced the dial cord with various turns counters (MFJ-TC12 used here by Tom K0SN)

• Explanation of "L" Network vs. "T" Network by Scott Robbins, W4PA

• Circuit Type: Modified "L" Network
• Maximum RF Power: 2000 watts with a load impedance of 3000 ohms
• Frequency Range: 1.8 to 30 MHz
• Output Matching Range: At least 10:1 SWR, any phase angle.
• Maximum Impedance, Balanced Feedline: 500 ohms
• Input Impedance: 50 ohms, nominal
• Input/Output Connectors: Input and four antenna coax connectors are SO-239, UHF type. Studs with wing nuts for single wire and balanced feeders.
• Variable CAPACITOR VOLTAGE RATING: 3.5 kV
• Inductance: 28 uh silver plated roller inductor
• Size: HWD (in inches) 5.5 x 13 x 11 (13.9 x 33 x 27.9 cm)
• Weight: 9 lbs (4.1 kg.)