NJ7P SQL Tube Database Query

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A horizontal ribbon.

6KM8
Diode - Sharp-Cutoff Three-Plate Tetrode

EIA Base & Outline

EIA Base: 9QGEIA Bulb: 6-3
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used in frequency-divider and complex-wave generator circuits of electronic musical instruments. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-6 1/2
EIA Outline ................................... 6-3
EIA Base ...................................... 9QG

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Tetrode-1A
Source ........................................ RCA RC-29 - 1975
Input ......................................... 5.5 pf
Output ........................................ 1.2 pf
Grid to Plate ................................. 0.02 pf

Tetrode-1B
Source ........................................ RCA RC-29 - 1975
Input ......................................... 5.5 pf
Output ........................................ 1.3 pf
Grid to Plate ................................. 0.02 pf

Tetrode-2
Source ........................................ RCA RC-29 - 1975
Input ......................................... 5.5 pf
Output ........................................ 1.8 pf
Grid to Plate ................................. 0.06 pf

Maximum Ratings (Design Center Values)

Tetrode-1A
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Grid No. 2 Voltage ............................ 330 V
Plate Dissipation ............................. 1 W
Grid No. 2 Dissipation ........................ 0.65 W

Tetrode-1B
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Grid No. 2 Voltage ............................ 330 V
Plate Dissipation ............................. 1 W
Grid No. 2 Dissipation ........................ 0.65 W

Tetrode-2
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Grid No. 2 Voltage ............................ 330 V
Plate Dissipation ............................. 1 W
Grid No. 2 Dissipation ........................ 0.65 W

Characteristics and Typical Operation

Plate 1A Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 100 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ 0 V
Plate Resistance (approx) ..................... 100K Ω
Transconductance .............................. 2000 µMho
Plate Current ................................. 2.3 mA
Grid No. 2 Current ............................ 3.8 mA

Plate 1B Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 100 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ 0 V
Plate Resistance (approx) ..................... 100K Ω
Transconductance .............................. 2000 µMho
Plate Current ................................. 2.3 mA
Grid No. 2 Current ............................ 3.8 mA

Plate 2 Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 100 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ 0 V
Plate Resistance (approx) ..................... 120K Ω
Transconductance .............................. 1800 µMho
Plate Current ................................. 2.1 mA
Grid No. 2 Current ............................ 3.8 mA

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A horizontal ribbon.

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Fri, 24 Jun 2022 19:38:02 -0700