• Electron tube vacuum tube power amplifier 845 audio tube

Electron tube vacuum tube power amplifier 845 audio tube

Min.Order Quantity: 4 Piece/Pieces
Supply Ability: 100 Piece/Pieces per Month
Port: Dalian port ; Beijing Airport
Payment Terms: T/T

Product Details

Quick Details



Quick Details

  • Place of Origin: Liaoning, China (Mainland)
  • Brand Name: LIght of Torch
  • Model Number: 845
  • material: glass metal
  • weight: 0.5

Packaging & Delivery

Packaging Details: Carton which size 59*59*47cm
Delivery Detail: 1-3 workding days once the money transfer is confirmed


2.Audio electron vacuum tube
3.Used in pair for amplifier
4.Exquisite triode
5.Glass metal electron tube

Audio frequency power amplifier , Modulator

General Characteristics

Filament Voltage                                                                                      10

Filament Current (amps)                                                                          3.25

Amplification Factor                                                                                  5.3

Grid to Plate Transconductance@ 100 ma. ( micromhos)                        3400

Direct Interelectrode Capacitances:

Grid to Plate                                                                                              11.5

Grid to Filament                                                                                         5

Plate to Filamen                                                                                        3.5



   A.F. Power Amplifier and Modulator--- Class A ( typical operation One tube)



A.C. Filament Voltage                                                         10

D.C.Plate Voltage                                                                1000

D.C.Grid Voltage                                                                -155

Peak A.F. Grid Voltage                                                        150

D.C Plate Current ( ma.)                                                     65

Plate Dissipation ( watts)                                                   65

Load Resistance( ohms)                                                   9000

Power output ( watts)                                                          21

Distortion ( % Sencond Harmaonic)                                5

  A.F. Power Amplifier and Modulator--- Class AB( typical operation Two tubes)

A.C. Filament Voltage                                                         10                                 10

D.C.Plate Voltage                                                                1000                             1250

D.C.Grid Voltage(Approx)                                                 -175                               -225

Load Resistance ( hhms per tube)                                 1150                              2200

Effective Load Resistance ( plate to plate) (ohms)       4600                             8800

Zero Signal Plate Current( ma.)                                        40                                  40

Peak A.F. Grid to Grid Voltage( Approx.)                           340                               440

Max. Signal D.C. Plate Current( ma.)                                220                                200

Max. Signal Plate Input ( watts)                                          220                                250

Max. Signal Power output ( watts)                                     75                                   105


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Company Profile

  Business Type: Manufacturer, Trading Company
  Main Products: Electron Tube,Triode
  Location: Liaoning, China (Mainland)
  Year Established: 2004
  Number Of Employees: 101 - 200 People
  Total Revenue: Above US$100 Million
  Main Markets: Southeast Asia, Oceania, Africa, Domestic Market, Eastern Europe
  Certifications: ISO9001,High-tech enterprises,ISO9001
  Product Certifications: CE(European community-certificate of adequacy)
  Average Lead Time: 3 Day(s)
Jinzhou Huaguang Electron Tubes Co., Ltd


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