KT150 Tube KT150-PT HiFi Audio Amplifier DIY Matching(4pcs Matched Quad)

Preamps
KT150: Hot wire heating
Uh----------------6.3 V
Ih---------------1.85 A
Interelectrode capacitance
C at -20.5 PF
C output: 10 pF
C-Span: 1.75 PF
Limit ratings
Ua (fourth-stage pipeline connection) -850 V
Ua (transistor connection) -650 V
Ug2 (pentode connection) --650 V
Ug2 (transistor connection) --600 V
-Ug1-- -- --200V
Pa----------------------------70 W
Page 2------------------------9 W
Ik (pentode link) - 250 mA
Ik (transistor connection) - 250 mA
Ultra High Current -- -- -- -- -- ± 300 V
Ginsenosides
When a fixed bias voltage is applied -51k
Self bias: 240k
Glass shell temperature -250
Recommended working status (reference value)
Single tube class A1 amplifier (fixed bias)
Voltage---------400V
Ug2---------225V
-Ug1-- --14V
Current-------------165 mA
Ig2 (max) - 15 mA
RL --------3 thousand
Transconductance---------12.6 mA/V
Output------------20 W
Total--------14%

Channels: 1
Model: KT150-PT
Maximum power per channel: No power supply