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--- 229a [2007/10/06 19:23]
n5na created
+++ 229a [2008/05/02 01:35] (current)
n5na
@@ Line 1: / Line 1: @@
 ====== Antenna Tuner Model 229A ======
-{{229a.jpg?150|}}{{229a-inside.jpg?120|}}
+{{229a.jpg?150|}}{{229a-inside.jpg?120|}}{{229a-inside3.jpg?120|}}
+===== 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

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