====== Antenna Tuner Model 229B ======
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===== Description =====
Adjustable reactive network used for matching the unbalanced 50 ohm output impedance of transmitters and transceivers to a variety of loads, either balanced or unbalanced.  Covers 1.8 to 30 MHz.  Provision for selecting one of four antennas or for bypassing the matching network.  A dual range power and SWR meter is included.

===== Mods & Tips =====
  *[[http://n6ie.com/Ten_Tec_238.html|N6IE High Power Improvement Mod]]

===== Additional Information =====
  *[[t_vs_l|Explanation of "L" Network vs. "T" Network]] by Scott Robbins, W4PA


===== Specifications =====
  ***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 ohms maximum at full power.
  ***Maximum Balanced Load (through the balun):** 500 ohms
  ***Input Impedance:** 50 ohms, nominal
  ***Capacitor Voltage Rating:** 3.5 kV
  ***Inductor:** 18 uh silver plated roller inductor
  ***Finish:** Dark painted front and rear, textured sides and top
  ***Size:** HWD 5.5" x 13" x 11", overall 
  ***Weight:** 9 lbs