NJ7P SQL Tube Database Query

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6CA5
Beam Power Pentode

EIA Base & Outline

Substitute Data

Substitutes ................................... 6CU5 6AS5 6EH5
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used in af power output stage of radio and television receivers. 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)

Beam Pentode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 15 pf
Output ........................................ 9 pf
Grid to Plate ................................. 0.5 pf

Maximum Ratings (Design Center Values)

Beam Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 130 V
Grid No. 2 Voltage ............................ 130 V
Plate Dissipation ............................. 5.0 W
Grid No. 2 Dissipation ........................ 1.4 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 125 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage ............................ -4.5 V
Peak Grid No. 1 Voltage........................ 4.5 V
Amplification Factor .......................... 37
Plate Resistance (approx) ..................... 15K Ω
Transconductance .............................. 9200 µ
Plate Current (Zero Signal) ................... 37 mA
Plate Current (Maximum Signal) ................ 36 mA
Grid No. 2 Current (Zero Signal) .............. 4 mA
Grid No. 2 Current (Maximum Signal) ........... 11 mA
Load Resistance ............................... 4.5K Ω
Power Output (approx) ......................... 1.5 W

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 110 V
Grid No. 2 Voltage ............................ 110 V
Grid No. 1 Voltage ............................ -4 V
Peak Grid No. 1 Voltage........................ 4 V
Plate Resistance (approx) ..................... 16K Ω
Transconductance .............................. 8100 µ
Plate Current (Zero Signal) ................... 32 mA
Plate Current (Maximum Signal) ................ 31 mA
Grid No. 2 Current (Zero Signal) .............. 3.5 mA
Grid No. 2 Current (Maximum Signal) ........... 7.5 mA
Load Resistance ............................... 3.5K Ω
Power Output (approx) ......................... 1.1 W

If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.

(c) 1994-2021 by William A. Beech, NJ7P

Sat, 25 Mar 2023 19:25:49 -0700