Shatterbox please!!!!
- Thread starter Jiberjew
- Start date
Feral Feline
Well-known member
Zonk II, anyone?…
Would anyone like to talk about the Zonk II fuzz? Not the Zonk Machine (dark MKI TB), nor the rare two transistor Ge version of the II. I am interested in the Si (pnp) version. It’s very simple, seemingly…a Fuzz Face with one less resistor (and also one more resistor). However, I have not been...
forum.pedalpcb.com
According to the schem floating in the ethers, IMO, the PedalPCB Zonkbox PCB is not a suitable candidate for building a Shatterbox.
Jiberjew
Member
I was looking at that, hoping to add the rest of the circuit too. Thanks for the heads up. I do like the transistors that are called out for on the PedalPCB Zonkbox PCB though!Zonk II, anyone?…
Would anyone like to talk about the Zonk II fuzz? Not the Zonk Machine (dark MKI TB), nor the rare two transistor Ge version of the II. I am interested in the Si (pnp) version. It’s very simple, seemingly…a Fuzz Face with one less resistor (and also one more resistor). However, I have not been...
According to the schem floating in the ethers, IMO, the PedalPCB Zonkbox PCB is not a suitable candidate for building a Shatterbox.
Feral Feline
Well-known member
I wonder whether Robert will be able to get his hands on an original Shatterbox — he's a stickler for tracing these things himself even though a few projects in the shop were from schematics draughted by others.
I think Pink Jimi Photon was saying on another forum that the SWELL pot is in the wrong place on the schematic I mentioned previously. (I've only seen one schematic posted online).
[EDIT]
So I checked out the diagram for the board that's available from Amplified Parts & Solo Music Gear:
I drew up a schematic based on the linked-above diagram, and upon first inspection, the diagram confirms the original Vero-based Hornby Skewes schematic I downloaded off the Internet.
In other words, that schematic has the SWELL pot in the correct place.
I'll double check that layout and both my schematic and the vero-based schematic again later.
[EDIT]
So I checked out the diagram for the board that's available from Amplified Parts & Solo Music Gear:
https://www.solomusicgear.com/product/solo-pcb-vintage-style-tone-bender-mkii-iv-fuzz-circuit-board/
I drew up a schematic based on the linked-above diagram, and upon first inspection, the diagram confirms the original Vero-based Hornby Skewes schematic I downloaded off the Internet.
In other words, that schematic has the SWELL pot in the correct place.
I'll double check that layout and both my schematic and the vero-based schematic again later.
Last edited:
Jiberjew
Member
I saw this on solomusicgear.com, but I didn’t have any success bread boarding it. Maybe I’ll give it another shot. It would be cool to use a DC power source instead of the battery. Not sure if that’s possible with the PNP transistors, but, maybe?
PedalBuilder
Well-known member
There are several ways to do this. First, IMO there is absolutely no good reason to use PNP transistors for this circuit. Use a low gain NPN transistor like a 2N4123 instead of the 2N4061, and call it a day. It won't sound any different than a PNP version. If for some reason you absolutely must use PNP transistors, you can use a voltage inverter circuit based around a LT1054 or TC1044 voltage converter, but there's no good reason to go that route with this circuit. You could also "flip" the circuit so that the transistors +9v as a ground reference and ground as a virtual -9v reference. Or you could just use a silicon NPN.
Jiberjew
Member
Nice! I’ll give that a go. I think I have some 2N4123’s on hand. Thanks!
Feral Feline
Well-known member
I expect things to be a bit more expensive in Canada, but that Amp'd Parts board is CAD9.50, whereas the same board from Solo is CAD14...
*sigh*
*sigh*
