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ID = 72881
Brand: PIE, Przemysłowy Instytut Elektroniki; Warszawa
Tube type:  Beam Switching Tube - incl. "Trochotron"   Indication 
Identical to ELW1
Similar Tubes
Normally replaceable-slightly different:

Base Duodecal (12-pin), B12A (not glass)
Was used by Technology / Measurement
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC

High vacuum counting and indicating valve/tube for operation at speeds up to 30,000 pulses per second, with some, in special circuits, capable of operation to 100,000 pulses per second.
Employs a unique principle; an electron beam is switched between 10 stable positions with the beam penetrating holes in the anode to illuminate a fluorescent inner coating. The corresponding digit is labelled on the outside of the tube.
It had a short time in commercial use because it was more expensive to manufacture than the cold-cathode "dekatron" series of tubes and required more power and slightly more complex circuitry especially for external control and data selection.

Dimensions (WHD)
incl. pins / tip
41 x 78 x mm / 1.61 x 3.07 x inch
Weight 42 g / 1.48 oz
Tube prices 1 Tube prices (visible for members only)

ELW1: manufacturers datasheet
Anonymous 652 Collector

Just Qvigstad
ELW1: Foto aus eigener Sammlung
Anonymous 652 Collector

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Collection of

Collection of a member from D


Forum contributions about this tube
Threads: 1 | Posts: 1
Hits: 815     Replies: 0
Przemysłowy Instytut Elektroniki ELW1
Markus Zluwa

Ich bitte darum hier noch den Hersteller anzulegen: Przemysłowy Instytut Elektroniki - PIE, in Warschau/Warszawa
Siehe dazu auch das hochgeladene Datenblatt.


Markus Zluwa

End of forum contributions about this tube

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