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The MaxiMatcher Digital Tube Tester is a compact precision measurement station for the test bench or sales counter. It's designed to test power tubes for 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, EL34, 5881 and 6550 can be tested. With optional adaptors the MaxiMatcher will also test EL84 nine-pin miniature pentodes, Novar power pentodes, 2A3 and 300B power triodes, EL509 plate-cap pentodes and many others.

The MaxiMatcher is used by the audio tech, music store salesperson, or audiophile enthusiast to quickly test a tube for operation and quality. Start by placing a tube in the short circuit test socket and you will quickly identify the culprit that's been blowing all those fuses! The MaxiMatcher can be used to precision-select loose tubes into accurate sets for mounting in power amps, as a point-of-sale aid in selling matched tube sets or for verifying customer tubes at the sales counter.

The MaxiMatcher 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 the MaxiMatcher 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 the proprietary SmartFuse high speed protection circuit, 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 sampling A/D converter allowing high resolution measurements.

Features

  • Instantly identify weak or damaged power tubes
  • Accurately measure tubes for amplification quality
  • Precision-match tubes for plate current and transconductance
  • Real-world selectable plate voltages - 325 or 400 VDC
  • Test tubes for inter-electrode short circuits
  • Proprietary SmartFuse automatic protection circuit
  • Create matched sets of tubes for your customers
  • Inventory / QA check for OEMs or music stores
  • Sell your own label tubes
  • Very Rugged Construction
  • US 120VAC, Euro 240 VAC, Japan 100 VAC
Only $599 With 4 Maxi SocketSavers preinstalled.
Add $165
AC Voltage Selection
AC Voltage Selection



MaxiMatcher Specifications
Directly Testable
Tube Types
6L6, 5881, EL34, 6V6, 6550, 6CA7, 7581, KT88, KT90, KT100
Optional Tube Types
EL84/6BQ5, EL509, 7027, 7591, 7868, 807, 2A3, 300B, 45
(adapter required) click here for adapters
Plate Voltages 325, 400 VDC
Bias Voltages -60, -48, -36, -24, -14 VDC
Filament Voltage 6.3 VAC
Filament Current 6 Amps maximum filament current
Measurement Functions Plate Current (Ip) Range: 0 to 120.0 mA DC, ± 1.5 %
Transconductance (Gm) Range: 0 to 19.99 millimhos,
± 1.5 %
Test Frequency 1 KHz
Short Circuit test Any inter-electrode shorts up to lK Ohm, Indicated by LEDs
Protection "Smart Fuse" high-speed current limiter, AGC 1 Amp mains fuse
AC input 120 VAC, 75 watts max. input power (100, 240VAC models available)
Dimensions 8.5" D x 12.5" W x 2.5" H
Weight 11 lbs
    
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  Adapters
  High Quality Adapters
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• Stabilize tubes before matching for more accurate results
• Improve reliability by eliminating
early failures
• Visual indicator on each tube to sort out failed tubes
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• Instantly identify weak or damaged
power tubes
• Accurately measure a tubes
amplification quality
• Precision-match tubes for plate current and transconductance
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• Measure preamp tubes for Gain, Transconductance and Noise
• Test any common dual or single
preamp triode
• Audition tubes with dual-RCA Direct Audio Output
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• Adapt non-standard pinouts to
the testers
• Adaptors available for power tubes and for preamp tubes
• SocketSavers for preserving your investment
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