NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

6BK5
Beam Power Pentode

EIA Base & Outline

EIA Base: 9BQEIA Bulb: 6-3
Source ........................................ GE DS 04/55

Application

Source ........................................ GE DS 04/55
Miniature type used as af power output stage of tv and radio receivers in which only a small driving voltages are available. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ GE DS 04/55
Bulb .......................................... T-6 1/2
Base Type ..................................... E9-1 Small Button 9-Pin
EIA Outline ................................... 6-3
EIA Base ...................................... 9BQ
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ GE DS 04/55
Heater Voltage ................................ 6.3 V
Heater Current ................................ 1.2 A
Heater Warm-up Time ........................... 11 s
Maximum Heater-Cathode Voltage ................ 100 V

Direct Interelectrode Capacitances (approx)

Beam Pentode
Source ........................................ GE DS 04/55
Input ......................................... 13.0 pf
Output ........................................ 5 pf
Grid to Plate ................................. 0.6 pf

Maximum Ratings (Design Center Values)

Beam Pentode
Source ........................................ GE DS 04/55
Plate Voltage ................................. 250 V
Positive Grid No. 1 Voltage ................... 0 V
Plate Dissipation ............................. 9.0 W
Grid No. 2 Dissipation ........................ 2.5 W
Grid No. 1 Circuit Resistance
Fixed Bias ................................. 100K Ω
Self Bias .................................. 500K Ω

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE DS 04/55
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage ............................ -5 V
Peak Grid No. 1 Voltage........................ 5.0 V
Plate Resistance (approx) ..................... 100K Ω
Transconductance .............................. 8500 µMho
Plate Current (Zero Signal) ................... 35 mA
Plate Current (Maximum Signal) ................ 37 mA
Grid No. 2 Current (Zero Signal) .............. 3.5 mA
Grid No. 2 Current (Maximum Signal) ........... 10 mA
Load Resistance ............................... 6.5K Ω
Power Output (approx) ......................... 3.5 W
Total Harmonic Distortion ..................... 7 %

A horizontal ribbon.

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A horizontal ribbon.

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Mon, 03 Oct 2022 16:44:49 -0700