Product Description
  • M2-EL84 suitable for EL84 6BQ5 6P14 7189 6P1 etc.
  • M2 test tool is through multimeter get tube's mA
  • Measures the cathode current of the power tube for bias reading (at low voltage side of the tubes )
  • High-Quality 24K Gold Plated Banana Plug Male Speaker Cable Connectors
  • M2 wire length about 65cm. Ceramic socket and plated silver for long life 
Note:
  • 01:Keep the amplifier silent during use M2, 
  • 02:Turn off speaker sound,Do not turn on sound play songs,
  • 03:Insertamplifier just is let the tube get power and warm up, 
  • 04:Read most accurate's tube cathode current in working state
How to use:
  • 01:Set multimeter to the mA range (most common is 200mA)
  • 02:M2 Black banana plug into COM jack of multimeter
  • 03:M2 Red banana plug into mA jack of multimeter
  • 04:Turn off amplifier.
  • 05:Remove the tubes then plug in M2 socket.
  • 06:Then plug M2 in amplifier socket.
  • 07:Turn off speaker sound turn on amp (Keep amp silent) and let tubes get warm about 5 minutes.Just turn on the amplifier without let speaker sing.
  • 08:Read the bias measurement.
  • 09:Matched tube should be no more than 2 or 3 mA difference for a good balance between the tube

AMPTATA Payment
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On Sep 19, 2022 at 20:46:45 PDT, seller added the following information:

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