NJ7P SQL Tube Database Query

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7543
Sharp-Cutoff Pentode-Medium-Mu Triode

EIA Base & Outline

EIA Base: 7BKEIA Bulb: 5-2
Source ........................................ RCA RC-29 - 1975

Application

Miniature type used in compact audio equipment, Requires miniature 7-contact socket. This type is identical with 6AU6A except that it has a controlled hum characteristic.

Mechanical Data

Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-2
EIA Base ...................................... 7BK
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

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

For other characteristics and typical operation, see 6AU6A

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Thu, 29 Sep 2022 01:42:26 -0700