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Help On the Way / Slipknot! (Live At the Great American Music Hall, San Francisco, CA, August 13, 1975) — Grateful Dead1 / 2
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GuitarDistortedSolo80% confidence

Help On the Way / Slipknot! (Live At the Great American Music Hall, San Francisco, CA, August 13, 1975) Guitar Tone Settings

Grateful Dead · 1970s · rock

live

Original Recording

Guitar
1973 Doug Irwin 'Wolf' custom guitar
Pickups
DiMarzio Dual Sound humbuckers (coil-split for single-coil operation)
Amp
Fender Twin Reverb (Silverface, late 1960s/early 1970s, heavily modified by Alembic)
Pickup Position
Bridge pickup (coil-split to single-coil mode)

Live performance, August 13, 1975, Great American Music Hall. Jerry Garcia's 'Wolf' guitar with coil-split DiMarzio pickups into a heavily modified Fender Twin Reverb, typical of his mid-70s live rig. No evidence of additional amp heads or different guitars for the solo section.

Amp Settings

Mids
6
Bass
4
Gain
4
Reverb
3
Treble
7.5
Presence
5.5

Effects Chain

  • Mu-Tron III Envelope Filter · modulation
  • MXR Phase 100 (or Phase 90, model uncertain) · phaser
  • Delay pedal (model unknown, likely tape echo or analog delay) · delay

Guitar (Wolf, bridge pickup coil-split) → Mu-Tron III Envelope Filter → MXR Phaser → Delay pedal (tape/analog) → Fender Twin Reverb (spring reverb on)

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Tone Character

  • bright and articulate
  • singing sustain
  • touch-sensitive dynamics
  • slight edge-of-breakup crunch
  • clear note separation
  • upper-midrange focus
  • tight, controlled lows
  • sparkling highs
  • mild compression
  • responsive to picking attack

Notes & Caveats

  • ⚠️No direct source lists exact amp knob settings for this specific live solo; values are estimated based on typical Jerry Garcia/Fender Twin Reverb settings for this era and corroborated by user reports and genre conventions.
  • ⚠️No explicit confirmation of pedal models for this solo; effects are inferred from audio and known Garcia rigs of 1975.
  • ⚠️Pickup choice is inferred from tone and Garcia's known use of coil-split bridge pickup for solos in this period.
  • ⚠️No evidence of heavy distortion/fuzz pedals; overdrive is from amp and possibly preamp/line driver.
  • ⚠️If more precise settings or pedal models are found in future sources, update accordingly.
  • ⚠️Settings cross-referenced with genre and era conventions for accuracy. Jerry Garcia's solo tone on this live recording is clean with a touch of warmth and edge, reflecting his use of a Fender Twin Reverb with moderate volume and his signature OBEL effects loop. The EQ is balanced but slightly mid-forward for clarity and articulation, with moderate bass and treble. Presence is neutral, and reverb is subtle, as heard in the room ambience and classic Dead mixes of the era.

Sources