# Three singles with on/off mini-toggles, one volume and two tones Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/three-singles-mini-toggle-cutoffs-volume-two-tones Three single coils · Three SPDT mini-toggles · One volume · Two tones Three single coils, each switched on or off by its own ON/ON SPDT mini-toggle, into one 250k master volume. Two 250k tones (neck and middle) share one .022 µF capacitor; the bridge pickup has no tone control. Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/three-singles-mini-toggle-cutoffs-volume-two-tones.svg (back of controls) ## Parts and values - Neck single coil: Neck single coil (neck white, black); generic (Single-coil pickup (two-conductor)) - Middle single coil: Middle single coil (middle white, black); generic (Single-coil pickup (two-conductor)) - Bridge single coil: Bridge single coil (bridge white, black); generic (Single-coil pickup (two-conductor)) - Neck mini-toggle: ON/ON SPDT mini-toggle (top right, neck white); compatible example (SPDT Mini-Toggle) - Middle mini-toggle: ON/ON SPDT mini-toggle (middle, middle white); compatible example (SPDT Mini-Toggle) - Bridge mini-toggle: ON/ON SPDT mini-toggle (lower left, bridge white); compatible example (SPDT Mini-Toggle) - Master volume 250k: Master volume 250k; 250k; compatible example (CTS 250k Audio Pot) - Upper tone 250k: Tone 250k (upper, fed from the neck toggle centre lug); 250k; compatible example (CTS 250k Audio Pot) - Lower tone 250k: Tone 250k (lower, fed from the middle toggle centre lug); 250k; compatible example (CTS 250k Audio Pot) - .022 cap: .022 cap (drawn green); 22nF; compatible example (Orange Drop .022µF) - Output jack: Output jack; compatible example (Switchcraft \#11) - Ground wire to bridge: Ground wire to bridge; generic (Bridge ground wire) ## Specific to this wiring - Sheet title: 3 single coils \| 1 volume \| 2 tone, 3 2-way mini-toggle switches. The switches are labelled ON/ON SPDT mini-toggle switches. - Each pickup's white lead goes to its toggle's centre lug. The bottom lugs of all three toggles are chained together and on to the master volume input lug; the top lugs are chained together and on to the upper tone's solder spot (ground). So each toggle either sends its pickup to the volume or grounds it. The sheet prints no position legend; this is read from the drawn wiring. - A second wire on the neck toggle's centre lug is the big arc that hops over the middle toggle's wire and runs down as the leftmost wire to the lower tone's first lug; a second wire on the middle toggle's centre lug runs down beside it to the upper tone's middle lug. These tones stay on their pickups whatever the toggles do. - The .022 cap sits between the upper tone's third lug and its solder spot; the upper tone's third lug also runs to the lower tone's middle lug, so both tones share the one cap. - Black wires from all pickups go to the master volume solder spot, as does the ground wire to the bridge. - The master volume's third lug is drawn bent back onto its casing. - The toggle lugs are not labelled on the sheet; they are mapped top/centre/bottom to T1/T2/T3. - Source legend: the grey 'Solder' spot = location for ground (earth) connections. - Tip (hot output). Sleeve (ground): the inner, circular portion of the jack. ## Connections 1. Bridge mini-toggle top lug (T1) → Upper tone 250k casing (wire, black) 2. Neck single coil black (ground) → Master volume 250k casing (wire, black) 3. Middle single coil black (ground) → Master volume 250k casing (wire, black) 4. Bridge single coil black (ground) → Master volume 250k casing (wire, black) 5. Master volume 250k lug 1 → Master volume 250k casing (wire, ground) 6. Master volume 250k casing → Output jack sleeve (wire, black) 7. Ground wire to bridge → Master volume 250k casing (wire, black) 8. Upper tone 250k casing → Master volume 250k casing (wire, black) 9. .022 cap leg B → Upper tone 250k casing (wire, black) 10. Lower tone 250k casing → Upper tone 250k casing (wire, black) 11. Neck single coil white (hot) → Neck mini-toggle centre lug (T2) (wire, white) 12. Middle single coil white (hot) → Middle mini-toggle centre lug (T2) (wire, white) 13. Bridge single coil white (hot) → Bridge mini-toggle centre lug (T2) (wire, white) 14. Neck mini-toggle top lug (T1) → Middle mini-toggle top lug (T1) (wire, black) 15. Middle mini-toggle top lug (T1) → Bridge mini-toggle top lug (T1) (wire, black) 16. Neck mini-toggle bottom lug (T3) → Middle mini-toggle bottom lug (T3) (wire, black) 17. Middle mini-toggle bottom lug (T3) → Bridge mini-toggle bottom lug (T3) (wire, black) 18. Bridge mini-toggle bottom lug (T3) → Master volume 250k lug 3 (wire, black) 19. Neck mini-toggle centre lug (T2) → Lower tone 250k lug 1 (wire, black) 20. Middle mini-toggle centre lug (T2) → Upper tone 250k lug 2 (wiper) (wire, black) 21. Master volume 250k lug 2 (wiper) → Output jack tip (wire, black) 22. Upper tone 250k lug 1 → .022 cap leg A (wire, black) 23. Upper tone 250k lug 1 → Lower tone 250k lug 2 (wiper) (wire, black) ## What each position does - All pickups off: No pickup reaches the output. Source: Read from the drawn wiring: each toggle's bottom-lug bus feeds the volume, its top-lug bus runs to the tone casing (ground). The sheet prints no position legend. - Bridge: Bridge single coil. Source: Read from the drawn wiring: each toggle's bottom-lug bus feeds the volume, its top-lug bus runs to the tone casing (ground). The sheet prints no position legend. - Middle: Middle single coil. Source: Read from the drawn wiring: each toggle's bottom-lug bus feeds the volume, its top-lug bus runs to the tone casing (ground). The sheet prints no position legend. - Middle + Bridge: Middle single coil and Bridge single coil in parallel. Source: Read from the drawn wiring: each toggle's bottom-lug bus feeds the volume, its top-lug bus runs to the tone casing (ground). The sheet prints no position legend. - Neck: Neck single coil. Source: Read from the drawn wiring: each toggle's bottom-lug bus feeds the volume, its top-lug bus runs to the tone casing (ground). The sheet prints no position legend. - Neck + Bridge: Neck single coil and Bridge single coil in parallel. Source: Read from the drawn wiring: each toggle's bottom-lug bus feeds the volume, its top-lug bus runs to the tone casing (ground). The sheet prints no position legend. - Neck + Middle: Neck single coil and Middle single coil in parallel. Source: Read from the drawn wiring: each toggle's bottom-lug bus feeds the volume, its top-lug bus runs to the tone casing (ground). The sheet prints no position legend. - Neck + Middle + Bridge: Neck single coil and Middle single coil and Bridge single coil in parallel. Source: Read from the drawn wiring: each toggle's bottom-lug bus feeds the volume, its top-lug bus runs to the tone casing (ground). The sheet prints no position legend. - Board at rest: Neck + Middle + Bridge: Neck single coil and Middle single coil and Bridge single coil in parallel. Source: Read from the drawn wiring: each toggle's bottom-lug bus feeds the volume, its top-lug bus runs to the tone casing (ground). The sheet prints no position legend. - Board at rest: Neck + Middle + Bridge: Neck single coil and Middle single coil and Bridge single coil in parallel. Source: Read from the drawn wiring: each toggle's bottom-lug bus feeds the volume, its top-lug bus runs to the tone casing (ground). The sheet prints no position legend. - Each mini-toggle is modelled with switchPosition: throw 1 = the grounded top-lug bus (pickup off), throw 2 = the bottom-lug bus to the volume (pickup on); the board rests with all three on. Which lever direction reaches which throw is not printed. - The engine's per-toggle pickup selection agrees with every expected state listed. - Pickup resistance and magnet polarity are not specified, so no numeric meter readings or hum-cancelling claims are given. ## Check before plugging in - With each toggle thrown to its bottom lug, a meter across the jack should read that pickup; thrown to its top lug, that pickup should read as a short to ground. - With the volume at zero, tip and sleeve should read as a short. ## Source Tinkercaster's own drawing of the Seymour Duncan diagram 3S\_2mt\_1V\_2T, revision 2. Not the manufacturer's artwork and not endorsed by Seymour Duncan. See also [all wiring diagrams]().