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
19EA8 vacuum tube outline illustration

Tube-number record

19EA8

0 archive entries

19EA8 is a tube type in the TubeDatabase archive (class: Triode-Pentode). Recorded specifications: brand Tung-Sol, year 1959, construction Multi-section, base Small Button 9-Pin, socket Noval (B9A), maximum plate voltage 340 V, and maximum plate dissipation 4.1 W. The archive does not yet hold a photographed example of this type.

BrandTung-Sol
ClassTriode-Pentode
BaseNoval (B9A)
Filament18.9 V @ 0.15 mA

Construction

Primary TypeMulti-section
EnvelopeGlass
Base MaterialSmall Button 9-Pin
Sections2

Filament / Heater

Warm-up Time11s
Heater NotesAC or DC, Controlled heater voltage surges for warm-up cycle

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Section125 V640080000—12 mA
Triode Section150 V850050004018 mA

Application Notes

Intended primarily for use as a combined triode oscillator and pentode mixer in television receivers.

Filters

0 tubes found

Manufacturers

Brands

    0 results

    Absolute Maximum Ratings

    Plate Voltage340 V
    Plate Dissipation4.1 W
    Grid 2 Voltage330 V
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Sharp cutoff pentode
    • Electrically independent sections
    • Miniature construction
    • Controlled heater warm-up