Yellow Humper

PCB layout:

Schematic:

I drew all of these based on pictures I found online. Most (if not all) the schematics I could find for these online did not match up with the detailed pictures of the circuit boards I had found. The only original one I own myself is the purple peaker and when I compare that to the copy I made based on the drawings, they sound identical. These really are wonderful effects, some more subtle than others.

My hope is that this will make people build copies instead of ruining/rehousing the vintage units.

Please give me a little credit and Dan Armstrong a hell of a lot more credit if this helps you in any way.

Enjoy!

/Åke Strömer

Blue Clipper

 

Schematic: 

PCB:

Red Ranger

PCB layout:

Schematic:

 

Purple Peaker

PCB layout:

Schematic:

 

Green Ringer

 

Schematic:

PCB layout:

Orange Squeezer

PCB layout:

Schematic:

Triangle Big Muff Perfboard Layout

 

Here's a layout for the Perfboard triangle Big Muff.

For a schematic go to Kit Rae's incredible Big Muff page. 

http://www.kitrae.net/music/big_muff_history.html#TriangleBigMuff

Harmony H1201 Pickguard Template

I bought a 1966 Harmony Tenor guitar this week that I've started to fix up. It's missing the pickguard so I made a template based on the footprint of the old one and some pictures I found online. Now I'm just waiting for the pickguard material to show up.

Eprom Drum Voice

 

Kay Tremolo Schematic

 

And remember don't be like Leo,

 

Tremolo is modulation in amplitude, 

Vibrato is modulation in pitch.