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Centurion uses the classic pair of 3-500Z tubes. The RF deck and power supply are combined into a single, attractively styled, black desk top cabinet. The power output is rated at 1300 watts on SSB and CW and 650 watts using “key-down” modes. Drive required for full power SSB operation is 100 watts. The CENTURION operates on all bands (including WARC) from 1.8 to 21.5 MHz. 21.5 to 29.7 MHz is enabled with user installation of an expansion board, supplied at no charge upon proof of Amateur Radio License.
What’s included with the 422B Amplifier
Posted by Bill Braun on 23rd Dec 2013
I have used the Centurion with my Orion 2 since 2006. This amp is really very easy to tune up.
I also have a Ten Tec 238B tuner and the combination will tune into my antennas either a G5RV or Mosley 10-40M Vertical with little effort very quickly.
I have also used the amp with my Icom 746Pro with no issues.
This amp is a good fundamental design and well built. I run it at 60-70% or less most of time. It should last for years.
Posted by Jeff, K0ZR on 18th Aug 2012
I have used the Centurion now for almost 5 years in conjuction with an Orion II. Tuning stability and repeatability are outstanding. You can tune it up 30 seconds after hitting the "On" switch and hours later it is still resonant at the same frequency. I have used it in quite a number of 24 and 48 hour contests and it does fine ( I do use additional cooling ). There is 0.6 dB between 1300 W and 1500 W but ~ 4.25 dB difference in price replacing a pair of 3-500s compared to what most 1.5 KW amps' tubes cost. I was happy to put some additional money into heliax to make up the 0.6 dB.
Posted by Mike on 8th Mar 2012
I bought an used Centurion from TT about 5 years ago. Bullet proof. Mine runs about 2 hours a day, 7 days a week. i installed new tubes a couple of months after buying the amp and still running the same tubes.
No failures, breakdowns, etc.
Posted by Chet Wamsley, AA8CC on 27th Dec 2011
I have owned the Centurion amp for many years without a moments problem. I run the amp on all bands and at near 100% output most of the time. This amp has never failed me. The workmanship in this amp is unsurpassed by any other. It is built like a tank.If your looking for an HF amp with the gusto, this is it!
Posted by James K8JHR on 4th Oct 2011
The Centurion linear amplifier is extremely straight-forward and easy to use. Ten-Tec's product description is accurate and it is extremely sturdy and well made, practically indestructible and fool-proof.
I often receive excellent unsolicited audio reports when using this amplifier and my Ten-Tec Omni VII transceiver. It tunes up quickly and easily.
This product has met all expectations and I would recommend it to a friend.
// James -K8JHR //