Service your poweramps fast and easy: a simple bias-probe for use with any voltage-meter ! Just plug in the bias-probe between the powertube and the tube-socket, messure the idle current and setup the bias - that's all.
To operate this prove a voltage meter is needed, which is not included
This probbe is for all EL34, 6L6, KT88, 6550 and similar tubes
This probe is assembled and ready to use
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