Amplitrex AT1000 Tube Tester - The Best of the Best - Pristine Condition

Amplitrex AT1000 Tube Tester - I Purchased New From Amplitrex - Open Box - Tested - Like New Factory Condition

I paid over $3000.  These are hard to get. Was the simplest to utilize yet most capable tester on the market. 

Comes in its Original Factory Box.

 The Amplitrex AT-1000 is the state of the art computerized tube tester and one of the only tube testers ever produced that is able to work independently and has custom interfaced software for PC operation.  

 The Amplitrex AT-1000 is a current production tube tester and unlike tube testers built 35 to 55 years ago, the Amplitrex offers laboratory grade testing under microprocessor control and makes it possible to check a tube according to the original manufacturers design specifications.    

Even more valuable is the ability to duplicate real world amplifier parameters. With the Amplitrex AT-1000, you will be able to test tubes under the same conditions they are subject to within any amplifier. 

BENEFITS OF TESTING TUBES ON THE AMPLITREX AT-1000

• Your tubes are sure to be dependable
• Audio tubes are certain to sound good
• Tubes graded on the Amplitrex are known good and are going to last longer
• O.S Pre amp and Power tubes are worth what you paid for them
• An audio noise test is performed and only low noise tubes are passed
• The Amplitrex assures your tubes are not contaminated internally
• Peace of mind that your tubes are certain to work without question
• You can get your tubes exactly matched so you can keep spares that do not need to be re biased by a technician
• Your tubes are going to make plenty of clean power
• Your tubes will not make extraneous sounds

The tester will operate in the stand alone mode or when connected to a micro computer. When operated by an external computer it provides a greater level of testing with operator control over many different tests. Please review the PDF files below to see the capabilities of the tester. This tester was designed primarily for the audio industry. Input Power: 105-120 VAC or 208-240V (specify when ordering) 50/60 Hz at 2 amperes maximum Heater Supply: 1.0 to 12.6 VDC, regulated, at up to 3.5 amperes Plate Supply: 90 to 500 VDC, regulated, at up to 160 mA (45 - 425V on special order) Screen Supply: 90 to 500 VDC, regulated, at up to 160 mA (45 - 425V on special order) Control Grid Supply: -0.5 to -150 VDC, regulated Heater-to-Cathode Leakage: 200 VDC, negative on heater relative to cathode, limited to 1 mA, maximum sensitivity is 1.0 uA Small Signal Diode Test: 200 VDC, 1 uA to 1 mA fwd/reverse Rectifier Tube Test: 550 VCT RMS (nominal) applied to tube plates. Load is approx. 120 mA peak, measures forward and reverse peak voltage drops for both sections. Mutual Conductance Test: 0.05 mA/V to 50 mA/V (50 to 50,000 uMhos) with 1 kHz applied to control grid at 0.1 or 1.0V RMS Shorts Test: Tube is continually evaluated for shorts during the test sequence Gas Test: Detects effects of ionic gas current on grid circuit impedance Tube Sockets: 4-pin, 5-pin and 6-pin ‘small base’, octal, and 7 and 9-pin miniature high quality NOS Micalex and ceramic sockets are provided. No Compactron sockets are present, but some Compactrons can be tested with an (optional) adapter. Tube Life Test: Using Reduced Heater Voltage (user-programmable) User Interface: 5 menu navigation keys, UP, DOWN, LEFT, RIGHT and ENTER along with a 4-line x 40-character backlit LCD display Thermal: Specified for operation at 0 to + 40 degrees C, fan cooled, thermostat protected  Dimensions and Weight: 14.75" W x 12.25" D x 6.75" H 18.5 lbs Compliance: Designed to comply with UL/CSA standards. EMC tested for compliance under FCC and EC requirements