FENDER 400PS

FENDER 400PS

1970-1975

Configuration: Head
Power: 435 Watts
Effects: Reverb, Tremolo

SCHEMATIC

LAYOUT

  • Front Panel: Power Switch, Standby Switch, Pilot Light - "Bass" In, In, Deep Switch, Volume, Treble, Bass - "Normal" In, In, Bright Switch, Volume, Treble, Middle, Bass, Reverb, Speed, Intensity - Master Volume
  • Back Panel: Speaker Jack, Speaker Jack, Speaker Jack, Output Tubes Matching, Vibrato Jack, Reverb Jack, Hum Balance Preamp, Fuse, Ground Switch

CABINET 

SPEAKER 

  • Size: Fender Bass Bottom Ext Cab 1 x 18 with folded-horn design
  • Impedance: 4 ohms
  • Model: ?

 TUBES

  • Pre amp: 2 x 7075 ; 12AX7, 6L6GC
  • Power: 6 x 6550
  • Bias: Fixed
  • Rectifier: Solid State

Comments: The 400PS was the first large amp made by CBS, and the largest ever made by Fender. The chassis alone weighs as much as a Twin Reverb.
The output of the 400PS was divided into three 145 Watt power sections so it took three cabs to get the entire 435 Watts.

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