T-Rex Engineering Gristle King Pedal
Updated August 7, 2026
| Lot number | 906 |
| Auction | Guitar Amp & Drum Auction Frankston |
| Date | August 9, 2026 at 6:00 PM CDT |
| Auction house | SAS Auction Service Inc. |
| Location | Frankston, Texas |
This is a T-Rex Engineering Gristle King guitar effects pedal in a distinctive copper finish.It combines an overdrive circuit with a boost circuit, developed in collaboration with guitarist Greg Koch. No power cord.
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