====== Centaur Model 411 ======
{{411.jpg?150|}}

===== Reviews =====
  *[[http://www.arrl.org/files/file/protected/Group/Members/ProductReview/pdf/pr9706.pdf|ARRL]] (Must be an ARRL member and logged in to view.)
  *[[http://www.arrl.org/files/file/protected/Group/Members/ProductReview/pdf/lab/centurio.pdf|ARRL Expanded Report]] (Must be an ARRL member and logged in to view.)
  *[[http://www.eham.net/reviews/detail/155|eHam]]


===== Related Links =====
  *[[this>./webarchive/411|Archived Ten-Tec Web Page]]


===== Mods & Tips =====
  *[[411cooling|Cooling Fan Intake Mod]] to Reduce Noise
  *[[411cooling2|Cooling Fan Resistor Mod]] to Reduce Noise

===== Sales Information =====
  *{{411.pdf|Centaur Brochure}}

===== Specifications =====

**Band Coverage:** 160, 80, 40, 30, 20, 17 and 15 (12 and 10 meters for authorized users)

**Power Output:** 600 watts SSB/CW on 80 thru 15 meters, 500 watts on 160 meters and 10 meters. 400 watts RTTY/SSTV. 50% duty cycle

**Drive Power:** 90 -100 watts typical for rated output.

**Tube Complement:** 3 Svetlana 811A Triodes, class AB2 in grounded grid.

**Plate Voltage:** 1800 volts no load, 1500 volts full load.

**Efficiency:** up to 70% depending on frequency and load impedance.

**Harmonics:** meets or exceeds FCC requirements.

**Full Break-in:** built-in with T/R switching time less than 7 milliseconds.

**Primary Power:** 12 amps @ 120 VAC, 6 amps @ 240 VAC, 50/60 Hz. Shipped factory wired for 120 VAC, easily changed to 240 VAC through access panel on rear.

**Safety:** plate transformer primary interlock and high voltage shorting bar.

**Input/Output Impedance:** 50 ohms, unbalanced.

**Cooling:** 4" 100 CFM tube-axial fan, all metal frame.

**Metering:** forward power, grid current, plate voltage and plate current.

**Front Panel Controls:** plate TUNE and LOAD, band switch, operate/standby, QSK/PTT, meter switches for plate current/plate voltage and grid current/forward power, power on/off.

**Construction:** aluminum chassis, front and rear panels. Steel top and bottom covers.

**Size:** HWD 6" x 15.5" x 13" (15.2 x 39.4 x 33 cm).

**Weight:** 40 lbs. (18.145 Kg).