NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

6HM5
High-Mu Triode

EIA Base & Outline

EIA Base: 7GMEIA Bulb: 5-2

Substitute Data

Preferred Substitutes ......................... 6HA5 6HK5
Substitutes ................................... 6HQ5
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used as rf amplifier tube in vhf color and bw tv tuners. Requires miniature 7-contacts socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-5 1/2
EIA Outline ................................... 5-2
EIA Base ...................................... 7GM

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.18 A

Direct Interelectrode Capacitances (approx)

Triode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 4.3 pf
Output ........................................ 2.9 pf
Grid to Plate ................................. 0.36 pf

Maximum Ratings (Design Center Values)

Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 220 V
Plate Dissipation ............................. 2.6 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 135 V
Grid No. 1 Voltage ............................ -1 V
Amplification Factor .......................... 72
Transconductance .............................. 14.5K µMho
Plate Current ................................. 11.5 mA

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 135 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 87 Ω
Amplification Factor .......................... 72
Transconductance .............................. 20K µMho
Plate Current ................................. 19 mA

A horizontal ribbon.

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A horizontal ribbon.

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Thu, 30 Jun 2022 15:36:49 -0700