NJ7P SQL Tube Database Query

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4HM6
Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 9PMEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 4HT6
Substitutes ................................... 4EH7 4EJ7
Source ........................................ RCA RC-29 - 1975

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 4.2 V
Heater Current ................................ 0.45 A

Source ........................................ RCA RC-29 - 1975
For other characteristics and typical operation, see 6HM6

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Tube Manual Index from NJ7P

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Thu, 18 Aug 2022 00:35:02 -0700