Tube-number record
2Y2
0 archive entries
2Y2 is a tube type in the TubeDatabase archive (class: Half-wave high-vacuum rectifier). Recorded specifications: brand ARCTURUS, year 1938, construction High vacuum, and maximum plate voltage 4400 V. The archive does not yet hold a photographed example of this type.
BrandARCTURUS
ClassHalf-wave high-vacuum rectifier
Filament2.5 V @ 1750 mA
Construction
Primary TypeHigh vacuum
Rectifier TypeHalf-wave
EnvelopeST-12
Sections1
Filament / Heater
Heater NotesSlow heater designed to allow sweep oscillators to start before high voltage is applied to cathode-ray tubes.
Absolute Maximum Ratings
Application Notes
Type 2Y2 is a half-wave rectifier for use in cathode-ray oscillograph and television circuits where high voltage and low current are required. It has been designed as a slow heater in order to avoid burning the cathode-ray tube viewing screen at one spot before the sweep oscillators start to function.
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