NJ7P SQL Tube Database Query

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6EH5
Power Pentode

EIA Base & Outline

EIA Base: 7CVEIA Bulb: 5-3

Substitute Data

Preferred Substitutes ......................... 6GZ5
Substitutes ................................... 6AS5 6CU5 6CA5
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used in the audio output stage of radio and television receivers and in phonographs. Requires miniature 7-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-3
EIA Base ...................................... 7CV
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 1.2 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 17 pf
Output ........................................ 9 pf
Grid to Plate ................................. 0.65 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 150 V
Grid No. 2 Voltage ............................ 130 V
Plate Dissipation ............................. 5.5 W
Grid No. 2 Dissipation ........................ 2 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 135 V
Grid No. 2 Voltage ............................ 117 V
Grid No. 1 Voltage ............................ 0 V
Plate Resistance (approx) ..................... 11K Ω
Transconductance .............................. 14.6K µMho
Plate Current ................................. 42 mA
Grid No. 2 Current ............................ 14.5 mA
Load Resistance ............................... 3K Ω
Power Output (approx) ......................... 1.4 W

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 110 V
Grid No. 2 Voltage ............................ 115 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 62 Ω
Peak Grid No. 1 Voltage........................ 3 V
Plate Resistance (approx) ..................... 11K Ω
Transconductance .............................. 14.6K µMho
Plate Current (Zero Signal) ................... 42 mA
Plate Current (Maximum Signal) ................ 42 mA
Grid No. 2 Current (Zero Signal) .............. 11.5 mA
Grid No. 2 Current (Maximum Signal) ........... 14.5 mA
Load Resistance ............................... 3K Ω
Power Output (approx) ......................... 1.4 W

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Thu, 02 Feb 2023 05:01:48 -0700