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1964 Supro Thunderbolt S6420 Tube Guitar Combo Amplifier w/ Monster Cable #47295

Availability: In stock



WORKING CONDITION: Excellent - Works great. All of the controls and functions are working properly. The tone of this amp is very clean and sounds amazing. In all, everything is fully operational and in excellent condition. 

 Excellent - Considering that this is a vintage amp, there are signs of wear. The grill cloth has a few modest frays. The control panel inside the chassis is oxidized as well. Otherwise, everything is solidly built, well-kept, and intact. The overall physical condition is excellent. 


BRAND: Supro 

MODEL: Thunderbolt 

FUNCTION: Guitar Combo Amp 

PRODUCT DESCRIPTION: This listing is for a 1964 Supro Thunderbolt S6420 Tube Guitar Combo Amplifier w/ Monster Cable


  • Serial #24208
  • Finish/Color: Grey 
  • Weight: 37.75 lbs 
  • Watts: 35 
  • Ohms: 8 
  • Tube Config: 2x Groove Tube 6L6GC, Electro-Harmonix 5AUGB, 2x RCA 12AX7A 
  • Speaker Size: 15"
  • Speaker Type: Jensen C15PS 
  • Effects: Volume, Tone 


  • Monster 1/4" TS Instrument Cable 


UNPACKAGED DIMENSIONS: 23.75" x 20.5" x 11.5"

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