# M-117 Flanger

> This modulation entry consolidates documented M-117 Flanger variants, controls, settings and roles across dated guitarist pedalboards.

- Canonical page: https://pedalboardarchive.com/pedals/m-117-flanger/
- Machine-readable index of the archive: https://pedalboardarchive.com/llms.txt
- Evidence and reconstruction conventions: https://pedalboardarchive.com/methodology/

- **Category:** Modulation
- **Types:** Flanger, Modulation
- **Also known as:** MXR Flanger, MXR M117
- **Controls:** Manual, Regen, Speed, Width
- **Identification:** The model is identified.
- **Documented appearances:** 1 board, 1978

A large grey four-knob flanger responsible for the dramatic jet sweep of the early Van Halen rig.

## Documented boards

Each row is an observed appearance on a dated board. A position is only an observed one where that board's order evidence says so.

| Artist | Board | Date | Positions | Order evidence | Page |
| --- | --- | --- | --- | --- | --- |
| Eddie Van Halen | Debut-era modulation path | 1978-02-10 | 1 | Source-described | https://pedalboardarchive.com/artists/eddie-van-halen/debut-era-1978/ |