NJ7P SQL Tube Database Query

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1603
Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 6FEIA Bulb: 12-6

Substitute Data

Preferred Substitutes ......................... 77
Source ........................................ RCA DS 12/01/41

Application

Glass type used as biased detector and as a high-gain amplifier in radio equipment. Tube requires 6-contact socket. For ratings and typical operation data, refer to type 6J7. Low noise, non-microphonic version of 6C6.

Mechanical Data

Bulb .......................................... ST-12
Base Type ..................................... Small 6-Pin
EIA Outline ................................... 12-6
EIA Base ...................................... 6F
Top Cap ....................................... Small Metal
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 4.6 pf
Output ........................................ 6.5 pf
Grid to Plate ................................. 0.007 pf

For other characteristics and typical operation, see 6C6

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Tue, 28 Jun 2022 01:50:06 -0700