NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

15DQ8
High-Mu Triode - Sharp-Cutoff Pentode

EIA Base & Outline

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

Application

Miniature type used in tv receiver applications. The triode is used as a sync-separator, sync-amplifier, keyed-agc or noise-suppressor tube, and the pentode is used as a video output tube. Requires miniature 9-contact socket.

Mechanical Data

EIA Outline ................................... 6-3
EIA Base ...................................... 9HX

Electrical Data

Heater Voltage ................................ 15 V
Heater Current ................................ 0.3 A

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 250 V
Plate Dissipation ............................. 4 W
Grid No. 2 Dissipation ........................ 1.7 W

Triode
Plate Voltage ................................. 250 V
Plate Dissipation ............................. 1 W

Characteristics and Typical Operation

Triode Class A Amplifier
Plate Voltage ................................. 200 V
Grid No. 1 Voltage ............................ -1.7 V
Amplification Factor .......................... 65
Transconductance .............................. 4000 µMho
Plate Current ................................. 3 mA

Pentode Class A Amplifier
Plate Voltage ................................. 170 V
Grid No. 2 Voltage ............................ 170 V
Grid No. 1 Voltage ............................ -2.1 V
Plate Resistance (approx) ..................... 100K Ω
Transconductance .............................. 11000 µMho
Plate Current ................................. 18 mA
Grid No. 2 Current ............................ 3 mA

Pentode Class A Amplifier
Plate Voltage ................................. 200 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -2.9 V
Plate Resistance (approx) ..................... 130K Ω
Transconductance .............................. 10400 µMho
Plate Current ................................. 18 mA
Grid No. 2 Current ............................ 3 mA

Pentode Class A Amplifier
Plate Voltage ................................. 200 V
Grid No. 2 Voltage ............................ 220 V
Grid No. 1 Voltage ............................ -3.4 V
Plate Resistance (approx) ..................... 150K Ω
Transconductance .............................. 10000 µMho
Plate Current ................................. 18 mA
Grid No. 2 Current ............................ 3 mA

A horizontal ribbon.

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A horizontal ribbon.

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Tue, 29 Nov 2022 01:38:12 -0700