The Missing Link Audio Peacock Overdrive Fillmore Edition is a dynamic, touch-sensitive overdrive pedal inspired by the Fillmore East guitar tones associated with the Allman Brothers Band and other classic Southern rock players. RockBoard's PedalPedia describes it as delivering warm, amp-like breakup ranging from subtle grit to full overdrive1.
It is an analog circuit that combines vintage op-amp based drive with optional germanium diode clipping, and it responds to your guitar's volume and tone controls for expressive dynamics1. For more on the effect type, see Overdrive Pedals.
Controls and circuit
The Fillmore Edition's drive section is built around a vintage op-amp based topology, with germanium diode clipping that can be switched in as an option. A Voice control adjusts presence and high-end character, letting you shape how bright or round the pedal sits against your amp1.
Because the circuit is analog and touch-sensitive, RockBoard's PedalPedia notes that it responds to guitar volume and tone controls for expressive dynamics: picking harder pushes it toward full overdrive, and rolling the guitar's volume back eases it toward subtle grit1.
Power and bypass
The pedal runs on 9V DC, center negative, the standard supply for most compact pedals. True bypass switching is standard, so the drive circuit is out of the signal path when the pedal is off1.
Related pedals
Missing Link Audio builds several other drives in the Peacock family and beyond, including the Peacock Overdrive Handwired Point to Point, the Peacock Overdrive Germanium Limited Edition, the AC/OD Overdrive and the Highway 411.
Videos
Brett Kingman
Anthony Dioguardi, D.M.D, Diplomate ABDSM
Questions
Is the Peacock Overdrive Fillmore Edition analog?
Yes. According to the maker's product information, the Fillmore Edition is an analog pedal. It combines a vintage op-amp based drive circuit with optional germanium diode clipping, and it runs on a standard 9V DC center negative supply. Being analog, it responds dynamically to how hard you play and to your guitar's own volume and tone controls.
Is the Peacock Fillmore Edition true bypass?
Yes. The maker states that true bypass switching is standard on the Peacock Overdrive Fillmore Edition, so when the pedal is off, your guitar's signal passes through without the drive circuit loading it.
What does the Voice control do?
The Voice control adjusts presence and high-end character. In practice it lets you tilt the pedal between darker, rounder breakup and a brighter, more cutting top end, which is useful for matching the pedal to different amps.
What power does the Peacock Fillmore Edition use?
The pedal runs on 9V DC, center negative, the same standard supply used by most compact pedals, so it can share a typical pedalboard power supply.
Does the Peacock respond to guitar volume and tone controls?
Yes. The maker describes the pedal as responding to guitar volume and tone controls for expressive dynamics. Rolling your guitar's volume knob back cleans up the drive, and picking harder pushes it into fuller overdrive.
Does the Peacock Fillmore Edition use germanium diodes?
It offers optional germanium diode clipping. The circuit combines vintage op-amp based drive with germanium clipping that can be switched in, adding to the pedal's range from subtle grit to full overdrive.
Sources (1)
- Peacock Overdrive Fillmore Edition by Missing Link Audio, RockBoard PedalPedia, 2026






