Sunday, 30 April 2017

Hornby Skewes Shatterbox

The Hornby Skewes Shatterbox is another stupid rare fuzz/booster made in the 60's, need I really say any more? In case I do, info is not really available on this monster, but here's what I found:

Skewes Shatterbox Produced in Leeds circa 1966, the unit combines two effects; The JHS Zonk fuzz and a Treble Booster circuit, the original unit was produced in exceptionally limited numbers and was famously used by Mark Bolan T-Rex.



Layout 1: Original PNP



Layout 2: NPN Version


Layout 3: Original with LED


Layout 4: NPN with LED

 

11 comments:

  1. Please excuse my being thick - so you join the two switches together at "5"?

    ReplyDelete
  2. Are the labels for input jack and input board the right way around?

    ReplyDelete
    Replies
    1. Yes. The switching is odd, so I added the wiring to the switches. Just connect the locations with the same labels together. So on the switch there's a wire that says input board means you connect the input wire on the board to that lug of the switch. Same goes for the boost wire and boost on its respective switch.

      I labeled two of the lugs "5" because they are connected together and they are both lug 5 of their respective switches.

      Delete
  3. I think input board and input jack are inverted in the switch.

    ReplyDelete
  4. How do you connect LEDs for indication of on/off?

    ReplyDelete
    Replies
    1. the original didn't have LEDs. i just made 2 new layouts with switching for LEDs that i'm confident will work right.

      Delete
  5. Swell 2 and 3 should be reversed, dontcha think?

    ReplyDelete
    Replies
    1. nope, not according to any of the multiple schematics for the zonk. the swell control is exactly as it's indicated in the layout.

      Delete
  6. Anybody verify this yet? Itching to build it if it works!

    ReplyDelete