M2-EL84 Match Probes Vacuum Tube Bias Cathode Current Tester EL84 6BQ5 6P14 7189

Description

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