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.

• ARRL (Must be an ARRL member and logged in to view.)
• eHam

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

• Archived Ten-Tec Web Page

• 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.)