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Tubeworks design analysis

The old Real Tube 12AX7A stomp
pedal left a little to be desired.		 pdf version
Sylvania-12ax7.jpg
I reviewwd  a guitar pedal decades ago. I am prety sure it is this one on YouTube: https://youtu.be/a88nbHDcpWk

I can see this pedal also has a 2-wire line cord going into a metal case. To my knowledge, that is illegal, since the box is not double-insulated like a plastic drill motor. Not sure if they still make it, though it looks like the company is still around.
 Here is a design analysis I did for a client. It is a guitar effects unit, a so-called "stomp box".

I was not very impressed by the engineering, but this may have been a prototype the client had gotten a hold of.
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QUALITY- FAIR
     -Flux left on circuit card.
     -Unsoldered pads on circuit board.
     -Transformer retained by pop rivets.
      -Solder wicked into multi-strand wires.
       -LEDs unsupported.
       -"Fixes" soldered to back of board.

        REPAIRABILITY/MANUFACTURABILITY- POOR
      -No silkscreen or component designators.
      -Hardwired components captivate board to
                    enclosure.
      -Components underneath tube socket.
      -Close tolerances to enclosure may cause
                    shorts.

DESIGN- FUNCTIONAL BUT EXPENSIVE
      -Two op amps used as flip-flop to toggle
                    effects.
       -Eight large electrolytic capacitors.
        -Metal shaft potentiometers.
        -Three different potentiometer values used.
        -No surface mounted components utilized.
          -No high frequency roll-off, will damage
            tweeters.

LEGAL- NON-COMPLIANT
   -High voltage in unit without earth ground or
     double insulation.
    -No U.L. Listing.
    -High and low voltages in close proximity.

RECOMMENDATION:
    -Report non-compliance to FTC and       Underwriters  Laboratories so this product will be recalled from the market.
     -Design alternative product which eliminates
      ground loops in a safe manner and achieves
       cost reductions by good design and
        manufacturing practices.
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