2026 NEW Shuguang Tube 12BH7(E182CC)Amplifier HIFI Audio Vacuum Tubes
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2026 NEW Shuguang Tube 12BH7(E182CC)Amplifier HIFI Audio Vacuum Tubes
the price is for one piece


Heating by a hot wire
Uh…………………………………………………………… 6.3 (in parallel) 12.6 (in series) V
Ih………………………………………………………………0.60 0.3 A
Inter-electrode capacitance
No.1 No.2
Gate–screen capacitance………………………………………………………..2.6 2.6 PF
Input capacitance…………………………………………………………3.2 3.2 PF
Output capacitance……………………………………………………….. 0.5 0.4 PF
Capacitance between screen 1 and screen 2…………………………………………………………. 0.8 0.9 PF
Maximum ratings
Screen voltage………………………………………………………… 300 V
Power dissipated by the screen…………………………………………………. 3.5 W
Gate voltage ………………………………………………………..-50 V
Cathode current ………………………………………………………..20 mA
Voltage between the hot wire and the cathode…………………………………………….. 200 V
Resistance of the first gate
Fixed bias voltage………………………………………………………… 2.5 MΩ
Self-bias voltage……………………………………………………………. 1 MΩ
Typical operating characteristics
Class A1 amplification (per triode section)
Screen voltage ………………………………………………………..250 V
Gate voltage ……………………………………………………….-10.5 V
Screen current ……………………………………………………….11.5 mA
Internal resistance of the screen ………………………………………………………..5.3 KΩ
Transconductance ………………………………………………………………3.1 mA /V
Amplification factor………………………………………………………….17








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