Bias Testing Devices

Eurotubes™ Bias Probe™
For 8-pin power tubes such as 6L6 and EL34.   Requires separate digital volt-ohmmeter capable of reading current.  Complete with detailed instructions.

$31.99


  
TUBE BIAS CALCULATOR (for push pull class AB1/AB2)

Tube Type

Plate Voltage

Power W

Plate Current mA
+/-10%
Cathode Current mA
+/- 10%
- - -