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422 [2007/02/12 00:09]
n5na
422 [2018/10/30 02:32] (current)
n5na [Specifications]
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 ====== Centurion Model 422 Linear Amplifier ====== ====== Centurion Model 422 Linear Amplifier ======
 +{{422.jpg?​180|}} {{422rear.jpg?​150|}}
 +
 +===== Description =====
 +QSK amplifier using 3-500Z tubes. The RF deck and power supply are combined into a single desk top cabinet. The power output is rated at 1300 watts on ssb, 1000 watts cw and 650 watts using “key- down” modes. Drive required for full power ssb operation is 100 watts. The duty cycle is 50%.
 +
 +===== Reviews =====
 +  *[[http://​www.arrl.org/​members-only/​prodrev/​pdf/​pr9207.pdf|ARRL]] (Must be an ARRL member and logged in to view.)
 +  *[[http://​www.eham.net/​reviews/​detail/​113|eHam]]
 +  *[[http://​www.hamradiomarket.com/​Articles/​Ten%20Tec%20Centurion.htm|Bob Hutchinson, N5CNN]]
 +
 +===== Mods, Fixes and Additional Info =====
 +  * Meter lamp replacement:​ NAPA auto parts CM 756, 14V 80ma
 +  * [[422plate|non-zero plate current at idle]]
 +
 +===== Related Links =====
 +  *[[this>​./​webarchive/​422|Archived Ten-Tec Web Page]]
 +
 +
 +===== Brochure =====
 +{{422brochure.jpg?​150|}}
  
 ===== Specifications ===== ===== Specifications =====
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   ***Metering:​** Dedicated plate current meter. ​ Selectable multi-meter for plate voltage, grid current, forward or reflected power. ​ Ten element LED bargraph display for peak power indication.   ***Metering:​** Dedicated plate current meter. ​ Selectable multi-meter for plate voltage, grid current, forward or reflected power. ​ Ten element LED bargraph display for peak power indication.
  
-  ***Primary Power:** +  ***Front Panel Status Indicators:** Standby, operator, transmit.
  
-  ***Safety:** +  ***Primary Power:** 220 - 250 VAC @ 15 A, 110 - 125 VAC @ 30 A, 50/60 Hz.  For full power operation, 220 - 250 VAC strongly recommended.
  
-  ***Front Panel Controls:** +  ***Circuit Protection:** Primary line fuses. ​ Plate transformer primary interlock and high voltage shorting bar.
  
-  ***Construction:** +  ***Front Panel Controls:** Power on/off, standby/​operate,​ control mode select (QSK - PTT/VOX), plate TUNE and LOAD, band switch, meter switch.
  
-  ***Size:** +  ***Tune and Load Controls:** 6:1 vernier drives with calibrated dial skirts.
  
-  ***Weight:** +  ***Construction:** Aluminum chassis, front and rear panels, interior partitions and top and bottom covers.
  
 +  ***Size:** HWD 8.25" x 15.25" x 18.5" (20.3 x 38.7 x 46.9 cm)
  
 +  ***Weight:​** 47 lbs (21.3 kg)
  
-===== Reviews ===== +Note for older 422 Centurion amp ownersUsing an older Centurion with the newest Ten-Tec HF transceivers - Pegasus, Jupiter, ​and Orion - may require a small modification ​to the QSK board in older Centurion amps for proper QSK CW keyingShort diode D2 (red diode, 1N4148, next to Q1with a jumper wireThe current 422B does not require this modificationFor questionsplease consult our service department at (865428-0364 or via email at service@tentec.com
-  *[[http://​www.arrl.org/​members-only/​prodrev/​pdf/​pr9207.pdf|ARRL]] (Must be an ARRL member ​and logged in to view.) +
-  *[[http://​www.eham.net/​reviews/​detail/​113|eHam]] +
-  *[[http://​www.hamradiomarket.com/​Articles/​Ten%20Tec%20Centurion.htm|Bob HutchinsonN5CNN]] ​(Some beautiful photographs!)+

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