NJ7P SQL Tube Database Query

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6HG8
Medium-Mu Triode - Sharp-Cutoff Pentode

EIA Base & Outline

Application

Source ........................................ RCA RC-29 - 1975
Miniature type with frame-grid pentode unit used as combined oscillator and mixer tube in vhf color and bw tv receivers. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-6 1/2
EIA Outline ................................... 6-2
EIA Base ...................................... 9MP

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.34 A

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 150 V
Plate Dissipation ............................. 2 W
Grid No. 2 Dissipation ........................ 0.5 W

Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 125 V
Plate Dissipation ............................. 1.5 W

Characteristics and Typical Operation

Triode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 100 V
Grid No. 1 Voltage ............................ -3 V
Amplification Factor .......................... 17
Transconductance .............................. 5500 µ
Plate Current ................................. 14 mA

Pentode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 170 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage ............................ -1.2 V
Plate Resistance (approx) ..................... 350 Ω
Transconductance .............................. 1200 µ
Plate Current ................................. 10 mA
Grid No. 2 Current ............................ 3.3 mA

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, 02 Jul 2022 22:15:53 -0700