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7Y4 Vacuum Tube New and Used

- Description
- Specifications
The 7Y4 is a full-wave vacuum rectifier tube designed to supply high-voltage direct current (DC) in power supply sections of AC-operated radio receivers and electronic equipment. Electrically comparable to octal-based rectifier tubes like the 6X5, it features a 6.3V filament rating drawing 500mA and uses an 8-pin lock-in (loctal) base enclosed in a T-9 glass envelope. Manufactured by companies including Sylvania, Philco, RCA, and GE, this tube provides reliable plate voltage rectification for mid-century vintage radio chassis and power supply restorations.
Tube Type: Full-Wave Vacuum Rectifier
Base Type: Loctal / Lock-In (8-pin)
Envelope Style: Glass T-9
Filament Voltage: 6.3 V AC/DC
Filament Current: 0.5 A (500 mA)
Maximum AC Plate Voltage: 325 V RMS per section
Maximum DC Output Current: 70 mA
Primary Function: High-voltage AC to DC power supply rectification
Condition Options: New Old Stock (NOS) or Tested Used