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12DZ6
Power Amplifier Pentode

Base & Bulb ( ARRL HB - 1964)

Substitute Data

Preferred Substitutes ......................... 12EK6
Substitutes ................................... 12EA6

Mechanical Data

Bulb .......................................... T-5 1/2
Base .......................................... Miniature Button 7-Pin
Outline ....................................... 5-2
EIA Base ...................................... 7BK
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 10-16 V
Heater Current ................................ 0.175 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 12.5 pf
Output ........................................ 8.5 pf
Grid to Plate ................................. 0.25 pf

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 12.6 V
Grid No. 2 Voltage ............................ 12.6 V
Plate Resistance (approx) ..................... 25K Ω
Transconductance .............................. 3800 µ
Plate Current ................................. 4.5 mA
Grid No. 2 Current ............................ 2.2 mA

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