TubeDatabase
  • Tubes
  • Testers
  • Companies
  • Submit
  • About

Tube Database (7,341 tube types · 1,270 archive entries)

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
DisclaimerA–Z indexSubmit a tube
18042 vacuum tube outline illustration

Tube-number record

18042

0 archive entries

18042 is a tube type in the TubeDatabase archive (class: Special Quality Pentode). Recorded specifications: brand Philips, construction Pentode, base Glass, socket Noval (B9A), maximum plate voltage 210 V, and maximum plate dissipation 2.1 W. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassSpecial Quality Pentode
BaseNoval (B9A)
Filament18 V @ 0.1 mA

Construction

Primary TypePentode
EnvelopeGlass
Base MaterialGlass
SectionsSingle

Filament / Heater

Heater NotesIndirect by AC or DC; series or parallel supply

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Class A210 V90005000003810 mA
Pentode Class A Low Voltage120 V8200420000388.3 mA

Application Notes

Designed for use in telephone equipment and high-reliability wide-band amplifiers.

Datasheets

Datasheet: 18042.pdf

Download PDF
Loading datasheet...

Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Voltage210 V
    Plate Dissipation2.1 W
    Grid 2 Voltage210 V
    Grid 1 Voltage-1.1 V
    Cathode Current16 mA
    H-C Voltage100 V

    Audio Performance

    Typical THD10%
    Power Output0.66 W
    Key Features
    • Special Quality (SQ)
    • Long life (>10,000 hours)
    • Shock and vibration resistant
    • Suitable for series or parallel heater supply