Tube-number record

AC/HL

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BrandEdiswan / Mazda

ClassTriode

Base5-pin

Filament4 V @ 1000 mA

Construction

Primary TypeTriode

EnvelopeBulb

SectionsSingle

Filament / Heater

Heater NotesIndirectly-heated

Absolute Maximum Ratings

Plate Voltage200 V

Cathode Current12 mA

Audio Performance

Key Features

Indirectly-heated
High amplification factor
Low anode A.C. resistance
Cumulative-grid detector
Power-grid detector
Anode-bend detector
L.F. amplifier

Typical Operation

Mode	Plate V	Gm (µmhos)	Rp (Ω)	µ	Plate mA
Rating Point	100 V	3000	11700	35	—
Amplifier	100 V	—	—	—	—
Amplifier	150 V	—	—	—	—
Amplifier	200 V	—	—	—	—

Application Notes

Suitable for use in any position in the set with the exception of the output stage. Available with clear or metallised bulb. For cumulative-grid detection, a 0.0001 to 0.0002 µF condenser with 1 to 2 Megohm leak is recommended.

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