Guitar Setup Lab

Category hub

Electronics & wiring

Choose a focused tool, then follow its links from symptom to measurement and record.

InteractiveGround Hum Diagnostic WizardSeparate cable, room, pedalboard, amplifier, and guitar-side noise clues without directing amplifier repair.InteractivePickup Phase TroubleshooterDistinguish combined-position phase symptoms from pickup height, output, and wiring differences.InteractivePickup Wiring Configuration SelectorCheck desired switching options against pickup conductors, pots, and switch hardware.InteractivePotentiometer Value SelectorCompare common passive pot ranges by pickup type, brightness goal, and present symptoms.InteractiveTone Capacitor Comparison ToolCompare capacitor values and simple RC reference points without reducing the whole guitar circuit to one filter.InteractiveSeries / Parallel / Coil-Split SelectorIdentify available humbucker switching modes, expected relative trends, and hardware constraints.

How to use the Electronics & wiring bench

Begin outside the guitar: level down, known-good cable, direct signal path, comparison instrument, room, and safe amplifier or interface.

Choose the right starting point

Once the source domain is isolated, use the phase, wiring, pot, capacitor, and coil-mode pages to define passive-circuit requirements and tradeoffs.

This category contains 6 focused tools. Read each page’s preparation and limitation sections before entering values, then follow only the related workflow that resolves the next uncertainty.

Evidence standard

Never open an amplifier, power supply, or mains device. Maker wire colors are not universal, so document lead functions before soldering.

  1. Preserve the starting condition.
  2. Change or test one variable.
  3. Retune or reset the test condition.
  4. Repeat the same measurement.
  5. Record remaining uncertainty.

When to stop

Stop when evidence conflicts, a datum is unclear, hardware reaches a limit, or the next step becomes structural, energized, or irreversible. A qualified technician can inspect conditions that browser inputs cannot represent.