Maxi-Matcher Specifications

Maxi-Matcher Digital Tube Tester/Power Tube Matching System

The Maxi-Matcher Digital Tube Tester is compact unit for the testbench or sales counter. Maxi-Matcher tests power tubes for short circuits and the electrical characteristics of plate current (Ip) and transconductance (Gm). Any of the standard octal-base power pentodes common in today's audio amplifiers including 6L6, 5881 and 6550 can be tested. With optional adaptors Maxi-Matcher will also test nine-pin miniature pentodes, Novar power pentodes, 7591's, and some power triodes and power tetrodes.

Maxi-Matcher is used by the audio tech, music store salesperson, or hobbyist to quickly test a tube for functionality. Simply placing a tube in the short circuit test socket will quickly identify the culprit that's been blowing all those fuses! Maxi-Matcher can be used to precision select loose tubes into accurate sets for mounting in power amps, and as a point-of-sale aid in selling matched tube sets or verifying customers tubes.

Maxi-Matcher tests up to four tubes at a time, and has a separate socket for short circuit testing. Easy directions for use are provided right on the top panel and the layout is clear and intuitive, making Maxi-Matcher simple to use and easy to understand. Separate selector switches for Bias Voltage, Plate Voltage, Measurement Function, and Test Socket Select are provided, along with protection fuses, indicators and a mains switch. All test data appear on a large, bright 3.5 digit LED display. Digital measurements are made by a proprietary A/D converter circuit allowing high resolution measurements.