Klausmobile Tube Tester Files

Made in Vinniza (Ukraine). Surprised? 6J5P, 6J9P, 6N3P, 6F4P, 6K13P were also made there. The tube has big, EL84-style plate.

Triode mode, grid 3 at cathode

Standard specifications per each triode
Parameter Maximum Operating Point Pentode Measured Triode Mode
Ua, V +250 200, 200 G2 200
Ug, V +250 G2 -2.4 -2.0
Ia, mA 25mA Cathode 8.5 + 3.5 G2 10 (P+G2)
Pa, W 2.5W + 1W G2 1.7 + 0.7 G2 2 (P+G2)
Gm, mA/V - 15.5 16
Rp, kOhm - - 73
Mu, V/V - - 4.5

Note: Disregard Gm/Mu/Rp values for extreme Ua values, as these are skewed by the tester's power limit (obvious in the first curve set)

Legend: White curves: Ig<5uA Yellow: 5<Ig<20uA Red: 20<Ig<300uA. Measurements terminate at Ig>300uA

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