TubePad 6.0 Tube Chart

Quick Reference Data

Name: 1S4
Use:
Power Amplifier Pentode
Notes: Requires a miniature 7-pin socket.


 1S4 
Power Amplifier Pentode

Data Source . . . . . . . . . .  Collins 1940
Heater or Filament Voltage. . .  1.4 volts
Heater or Filament Current. . .  0.1 amperes
EIA Base. . . . . . . . . . . .  7AV
Substitutes . . . . . . . . . .  None





Typical Operation as a Receiving Tube                   

Description         Ep   Eg  Vs   Is   Ip    Rp   TC   AF   Zl   PO
===================================================================
Class A Amplifier  45  -4.5  45  0.8  308  250K 1250    -   8K .065