Akashic Guitar effects circuit lookup
DRIVETONEVOLUME

Enclosure not stated · 3 knobs

Tagboard Effects

Cornish SS-2Verified

Based on the Cornish SS-2· 7 other boards clone it

Category
Distortion
Controls
Drive · Tone · Volume
Build
Vero· 18×15· 21 cuts, 7 links
Layout
Verified · Tagboard Effects marks it as built and working
Tags
Cornish, Distortion, Overdrive

From the post

Pete's highly acclaimed Overdrive/Distortion box of the stars. The original obviously includes the Cornish buffered bypass switching which isn't shown here as it is assumed most people will use the usual 3PDT mechanical bypass.

But if you do want to build it like Pete, then make a daughterboard of the Cornish Buffer. The input socket connects directly to the input of the bypass buffer. The output of the bypass buffer then goes to SS-2 input and daisy chains to the 3PDT stomp switch, lugs 1 and 4. The output from Volume 2 of the SS-2 will go to 3PDT lugs 3 and 6, and the output socket connects to 3PDT lugs 2 and 5.

The third pole of the 3PDT is used for LED switching as usual.

Info from Cornish about his very expensive and much sought after stompbox:

The Pete Cornish SS-2 satisfies a tremendous void in the Musicians palette of tone colors. Totally different from any overdrive/distortion effect that has ever been previously available; it is amazingly responsive to changes in both Guitar volume and picking articulation. It has the best “bottom end retention” ever heard in an effect, whilst the mid-range is sweet and very transparent. The SS-2 retains all the tonal nuances of your guitar and is subtle and yet capable of amazing power and sustain. Using the SS-2 with a clean amp it is possible to progress from subtle overdriven amp sounds, through rhythmic crunch, up to a blues' lead. The tonal characteristics and dynamics of the guitar are maintained even when using this pedal at its maximum gain.

Schematic

This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.

Parts list 25 rows

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RefValueNormalizedTypeNotes
Resistors 9
×41M1Mread from the layout by eye
×410K10kread from the layout by eye
×2150K150kread from the layout by eye
×1180K180kread from the layout by eye
×1100K100kread from the layout by eye
×16K86.8kread from the layout by eye
×12K42.4kread from the layout by eye
×1510R510read from the layout by eye
×291R91read from the layout by eye
Capacitors 10
×11u1uread from the layout by eye
×1470n470nread from the layout by eye
×1220n220nread from the layout by eye
×410n10nread from the layout by eye
×14n74.7nread from the layout by eye
×21n1nread from the layout by eye
×110p10pread from the layout by eye
×1220u220uelectrolytic; read from the layout by eye
×122u22uelectrolytic; read from the layout by eye
×210u10uelectrolytic; read from the layout by eye
Diodes 2
D11N2701N270read from the layout by eye
D21N2701N270read from the layout by eye
ICs 1
×2LM741LM741read from the layout by eye
Potentiometers 3
DriveB50KB50kPotentiometerwires labelled Sustain; read from the layout by eye
ToneB20KB20kPotentiometerread from the layout by eye
VolumeA10KA10kPotentiometerread from the layout by eye

Other boards based on the Cornish SS-2