NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

2E26
Beam Power Pentode

EIA Base & Outline

EIA Base: 7CK

Substitute Data

Substitutes ................................... 6893
Source ........................................ RCA TT-5 - 1962

Application

Source ........................................ RCA TT-5 - 1962
Glass-octal heather-cathode type used as af power amplifier and modulator and as rf power amplifier and oscillator in mobile- and emergency-communications equipment.

Source ........................................ RCA TT-5 - 1962
May be used with full input up to 125 MHz and with reduced input up to 175 MHz. Class C Telegraphy maximum plate dissipation, CCS 10 watts, ICAS 13.5 watts.

Source ........................................ RCA TT-5 - 1962
Requires octal socket and may be operated in any position.

Mechanical Data

Source ........................................ RCA TT-5 - 1962
Bulb .......................................... T-9
Base Type ..................................... Small Wafer Octal 8-Pin with Metal Sleeve
EIA Outline ................................... 9-24
Maximum Overall Height ........................ 3.656 In.
Maximum Seated Height ......................... 3.094 In.
Maximum Diameter .............................. 1.313 In.
EIA Base ...................................... 7CK
Top Cap ....................................... C1-1
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA TT-5 - 1962
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.8 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA TT-5 - 1962
Input ......................................... 12.5 pf
Output ........................................ 7 pf
Grid to Plate ................................. 0.2 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA TT-5 - 1962
Plate Voltage ................................. 600 V
Grid No. 2 Voltage ............................ 200 V
Plate Dissipation ............................. 13.5 W
Grid No. 2 Dissipation ........................ 2.5 W

Characteristics and Typical Operation

Class C Amplifier
Source ........................................ RCA TT-5 - 1962
Plate Voltage ................................. 600 V
Grid No. 2 Voltage ............................ 185 V
Grid No. 1 Voltage ............................ -45 V
Grid No. 1 Current ............................ 3 mA
Plate Current ................................. 66 mA
Grid No. 2 Current ............................ 10 mA
Driving Power ................................. 0.17 W
Power Output (approx) ......................... 27 W

Class C Modulated Amplifier (Plate)
Source ........................................ RCA TT-5 - 1962
Plate Voltage ................................. 500 V
Grid No. 2 Voltage ............................ 180 V
Grid No. 1 Voltage ............................ -50 V
Grid No. 1 Current ............................ 2.5 mA
Plate Current ................................. 54 mA
Grid No. 2 Current ............................ 9 mA
Driving Power ................................. 0.15 W
Power Output (approx) ......................... 18 W

Push Pull Class AB2 Amplifier
Source ........................................ RCA TT-5 - 1962
Plate Voltage ................................. 500 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage ............................ -15 V
Plate Current (Zero Signal) ................... 22 mA
Plate Current (Maximum Signal) ................ 150 mA
Grid No. 2 Current ............................ 32 mA
Driving Power ................................. 0.36 W
Load Resistance ............................... 8K Ω
Power Output (approx) ......................... 54 W

Class AB1 Amplifier
Source ........................................ RCA TT-5 - 1962
Plate Voltage ................................. 500 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -25 V
Peak Grid No. 1 Voltage........................ 25 V
Plate Current (Zero Signal) ................... 9 mA
Plate Current (Maximum Signal) ................ 45 mA
Grid No. 2 Current (Zero Signal) .............. 0 mA
Grid No. 2 Current (Maximum Signal) ........... 10 mA
Driving Power ................................. 0 W
Power Output (approx) ......................... 15 W

A horizontal ribbon.

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A horizontal ribbon.

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Thu, 08 Dec 2022 03:46:17 -0700