Eurotubes Pro One Bias Probe for Octal Base Power Tubes.

Eurotubes Pro One Bias Probe for Octal Base Power Tubes.

• Reads both plate current and plate voltage simultaneously!
• Self-contained, no knobs, no switches and works without batteries!
• Compatible with 6V6's, 5881’s, 6L6's, KT66's, EL34's, E34L's, KT77's, 6CA7's, 6550's and KT88's
• Dial in your bias using our “Test & Play” technology!
• Please note that the central guide pin is fragile just as they are on a tube base. You can break it if you force it into a socket. Breakage is NOT covered by warranty! We take great care in packaging to insure your probe arrives in tact!

The Eurotubes "Pro One" Bias Probe is an "all in one" bias probe for octal tubes including 6V6's, 6L6's, KT66's, EL34's, E34L's, KT77's, 6CA7's, 6550's and KT88's. It is unique in the fact that it shows you both the plate current and plate voltage simultaneously and it is completely self-contained with no switches, knobs or batteries. The "Pro One" Bias Probe will read out the plate current in the upper readout and the DC plate voltage in the lower readout. Unlike other bias probes the "Pro One" Bias Probe is designed to allow you to play the amp while the probe is installed. So adjust, play, adjust and dial your amp in!