Photo Page 18

The owners of these amps were kind enough to send me photos. These amps are all EL34 (octal-socket) models (four and six), and some have reverb and printed circuit boards (PCB) for the preamp tubes, and some are hard wired.

Please Note: I wanted to keep the photos somewhat large to show details, so instead of having them appear on this page, you'll need to click the links that follow (the largest file size is ~100KB). Sorry for any inconveniences said linking might cause. Enjoy.

GT-80 (Transitional? Protoype?) Head
This is an unusual beast to be sure. There appears to be no record of it in any of the Sound City documentation I have. If someone has anything that mentions this model, please let me know!

  • Front Panel View
    Standard Sound City layout, but notice the lack of identifying markings. Also, notice there is a Reverb Volume control, but the amp doesn't have an internal reverb tank or circuit.
  • Rear Chassis View
    Looks very much like the rear of any other Sound City head. It's really clean!
  • Chassis Front Right Oblique View
    Note the two extra tubes on the left end. The amp's owner said "when you turn the Reverb knob on the front panel you get a reverb / tremolo effect to the sound, which is a nice feature." Not sure what this means exactly, but a "tremelo... feature" might explain the two extra tubes. I have no clue how he could hear reverb without springs (unless it's solid-state somehow), but stranger things happen all the time.
  • Chassis Interior View
    Actually, the wiring looks pretty good; it's reminiscent of a Mark 3 head.
    In fact, the amp's owner suggested this might be a prototype or transitional amp (Mark 3 to Mark 4) and told me he spoke with a guy who also has one of these GT80 heads, whose serial number is three digits away from this one.

Mark 5 120 Number 001

  • Rear Chassis Panel View
    Notice how it appears as if pieces of tape were used for labels on the rear panel. This makes sense when you're not sure what is going to go where.
  • PCB Close-Up View
    PCBs were even used by Hiwatt, and they sounded great, so you never know.
  • Center Rear Panel Close-Up View
    You just gotta love that serial number. A typewriter is what Sound City used to fill out many of the badges on their products.

Mark 5 120 Number 006

  • Rear Panel View (SN Plate)
    Makes you wonder how many prototypes of this amp are out there.

Top of Page | Previous Photo Page | First Photo Page | Photos Home Page

Home | History | Catalog Pages | Schematics | Wiring Diagrams | Related Links | FAQs | Acknowledgements | Contact