Ampeg J-20 Jet

Model/Circuit Number: Ampeg J-20 Jet
Years of Production: 2007 – 2009
Era: Diamond Blue
Configuration: Combo
Controls: Chrome front facing w/ white screen labels numbered 1 through 10
Knobs: Black oven type with white pointers
Faceplate

  • Front: Normal In, Bright In, Volume, Tone, red dome pilot, Speed, Intensity, Standby switch, Power switch
  • Rear: 1.5A fuse, Int speaker jack, Ext speaker jack, Footswitch jack

Cabinet

  • Dimensions: 17.5″ H X 20″ W X 9.75″ D
  • Handle: Black leather dog bone style
  • Feet: Round black rubber
  • Corners: Bottom, nickel plated

Covering Material

  • Tolex/Tweed: Blue diamond checkered Tolex
  • Grill Cloth: Silver/black

Logo: Cabinet mounted silver rocket style
Weight: 25 lbs.
Speakers/Load: 1 x 12″ / 8 ohms

  • Speaker Model: Ampeg Special Design 12″ alnico
  • Effects: Tremolo
    Watts: 20 Watts
    Tubes

    • Pre amp: 1.5 X 12AX7 preamp, 0.5 12AX7 tremolo oscillator, 1 X 12AX7 phase inverter
    • Power: 2 X 6V6GT

    Bias: Fixed
    Rectifier: 1 X 5AR4

    Comments:

    2 thoughts on “Ampeg J-20 Jet

    • July 24, 2014 at 7:40 am
      Permalink

      Heavily based on the Fender 6G3 Brown Deluxe. Basically just had one set of controls for both channels.

      Reply
    • March 17, 2015 at 6:42 pm
      Permalink

      Crazy dirty, loud little bugger. I’m happy with the stock speaker. Nice round bottom end. P90s through this amp have a piano like quality.
      Beg, borrow or steal…….just get one.

      Reply

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