LARGE BOX AMPS - SOLID STATE RECTIFIED - 1966

Images on this page - amps with serial numbers in the 6000s



Amps assembled primarily at the Burndept factory (note the presence of the stamped chassis number).


The brimistor is the norm.


Transformers are now the black-topped units, similar to the ones used in AC100 mark 2s.

The warning plaque is red; the serial number plate is three-line






Serial number 6018 - currently in the UK

  • 6018
  • 6018
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  • 6018

Control panel faded to green/back, as is the case with a number of other later AC50s.





Serial number 6023 - currently in the UK

  • 6023
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Chassis number 2634. Pot codes are "EN" = May 1966.





Serial number 6028 - currently in Japan

  • 6028
  • 6028
  • 6028
  • 6028
  • 6028
  • 6028
  • 6028
  • 6028

Chassis number 2505. Thanks to Kenichirou Fujimura for info on this amp.





Serial number 6090 - currently in Germany

  • 6090
  • 6090
  • 6090
  • 6090
  • 6090
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Serial number 6100 - currently in Belgium

  • 6100
  • 6100
  • 6100
  • 6100
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  • 6100




Serial number 6115 - currently in Europe

  • 6115
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Serial number 6168 - currently in Australia

  • 6168
  • 6168
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  • 6168

Bought in Manchester in 2001, now in Tasmania. Thanks to Steve for the pictures.





Serial number 6171 - currently in the USA

  • 6171
  • 6171
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Serial number 6172 - currently in Europe

  • 6172
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Serial number 6253 - currently in the USA

  • 6253
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Chassis 2911. Pot codes are "FN" = June 1966. Pictures kindly supplied by Tom along with the history:


"My friend's dad bought it new and used it for his Fender Rhodes Piano. He bought the Head, 2-12" guitar cab, and 1-18" Foundation Bass cab. He stopped using it sometime in the early 80s when it was put in his attic.


"November 2010, friends dad was cleaning out his attic and asked me if I wanted the rig. I said sure and asked how much money he wanted for it. He stated he wanted nothing for it, just simply wanted it out of his attic. I took it home and cosmetically it was in rough shape. At some point the grille cloth was replaced with carpet! It was filthy. I was surprised it worked! One of the 12" speakers had been replaced with what I believe to be a Jenson, the other appeared to be a Goodmans 12" that I believe to be original. Only the Jensen was working...barely. The Goodmans Midax horn was in the cabinet, however not working. I took the head to a Valve Amp repair shop in my area. Had it cleaned internally, retubed, and biased. It needed a couple caps replaced but otherwise was in great condition."


"I ended up putting 2 new Jensen 12" speakers in the cabinet with the horn, but left the horn disconnected. The Foundation Bass cabinet still has its original Celestion 18" in it. It was in pristine condition inside once I opened the cabinet up...everything was like new!"





Serial number 6298 - currently in Europe

  • 6298
  • 6298
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  • 6298

Grille cloth faded to brown (as sometimes happens). Nice amp.





Serial number 6471 - currently in Belgium

  • 6471
  • 6471
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  • 6471




Serial number 6474 - currently in Germany

  • 6474
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Chassis no. 3001. A replaced mains transformer, but otherwise in great condition.





Serial number 6552 - currently in the UK

  • 6552
  • 6552
  • 6552
  • 6552
  • 6552





Serial number 6619 - currently in the USA

  • 6474
  • 6474
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Serial number 6680 - currently in the UK

  • 6680
  • 6680
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  • 6680




Serial number 6757 - currently in Italy

  • 6757
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Accompanied by its Foundation Bass speaker cab (with Celestion T1108). Red Lemco capacitors in the preamp. Note the inspection tag at the mains switch end of the preamp board.





Serial number 6760 - currently in the USA

Thanks to Gene for the note on the existence of this amp.





Serial number 6798 - currently in the UK

  • 6798
  • 6798
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Accompanying a 1980s V125 cab.





Serial number 6824 - currently in Europe

  • 6824
  • 6824
  • 6824
  • 6824
  • 6824

A Foundation Bass rig.





Serial number 6884 - currently in Europe

  • 6884
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Accompanied by a solid state Vox Sound Equipment Ltd. Foundation Bass cab. Probably exported originally to Germany or the Low Countries - a metal shop badge (rare in England and the US) can be seen on the top front edge of the cab.





Serial number 6911 - currently in Europe

  • 6911
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  • 6911