Walrus Audio Bellwether Instruction Manual

BELLWETHER ANALOG DELAY

INSTRUCTION MANUAL

The Bellwether is a bucket brigade delay pedal with 

tap tempo.  Offering analog circuity and up to 

1000ms of lush delays, the Bellwether ushers in a 

rich soundscape of long and short trails. It can 

achieve the warm saturated sounds found in delays 

like the Maxon AD999 and the coveted Boss DM-2. 

Inversely, the repeats can also be brightened up 

with the tone control for more pronounced rhythmic 

delays.  The Analog Chorus Engine allows you to 

manipulate the depth and rate of the chorus effect 

applied to your trails; creating a deep soundscape 

of ambient modulation.  Set the time and repeat 

controls low to get that classic western slap back 

sound or drag them out to achieve shoegaze 

perfection.  Take it all the way to 10 to achieve a 

self-oscillating delay.  The expression jack receives 

a TRS input to manipulate time or repeats; 

selectable by a toggle on the front of the pedal. 

There are two heavy duty footswitches: one for 

effect on/off and the other controlling the tap 

tempo.

Four tap division options are offered to control the 

rhythm of your repeats: quarter notes, eighth notes, 

dotted eighth notes, and triplets.  Expression 

control options are offered to swing either the time 

or repeat controls back-and-forth.  Manipulate the 

time control to get that Johnny Greenwood 

oscillation or use it on the fly to manipulate the 

repeat control; adding long tails to your diamonds.  

tap in

bypass

BELLWETHER

tap

mod

tap

div

time

time

repeats

repeats

tone

level

in

out 1

out 2

fx loop

exp

9v

rate

depth

off

on

Tap Div:

Repeats:

Time:

Level:

Time/Repeats Expression Toggle:

Bypass Footswitch:

Tone:

Mod On/Off:

Depth:

Rate:

Here, you can command at what meter the 

Bellwether produces your repeats relative to the Tap 

Tempo or Time parameter.  Each zone around the 

parameter is marked with the lowest setting being 

quarter notes.  At 10:00, you’ll get eighth notes, 

2:00 dotted eighth notes, and 4:00 triplets; all 

relative to the Time parameter or Tap Tempo.

When the Mod toggle in On, the Depth control 

regulates how deep the modulation sways below 

the note your instrument is playing.  For minimal 

depth, use at the lowest setting possible.  For a 

deeper modulation, turn the dial clockwise. 

When the Mod toggle is on, the Rate control 

regulates how fast LFO wave moves.  The fastest 

rate happens when the control is at its lowest 

setting. Turn clockwise to stretch the rate out and 

hear more spaced out and slower waves.

Dial the parameter to the lowest setting here to hear 

one dominate repeat.  As you turn the control 

clockwise, the number of repeats generated will 

increase.  

This toggle engages or bypasses the Analog 

Chorus Engine.  This feature is applied only to your 

repeats, modulating only the wet signal.

This parameter controls how soon and at what 

tempo your repeats are generated.  The shortest 

time possible will be when the control is at the 

minimum setting.  Turn the dial clockwise for a 

longer delay time.  Hear 1000ms of delay time when 

the control is at maximum. 

This control is a high-cut control that is only applied 

to your repeats and not your dry instrument signal.  

At its lowest setting, you will hear a full tonal range 

from high to low.  This is optimal for playing a more 

rhythmic delay style.  Turn the dial clockwise to 

start to hear the high-cut applied.  Limiting the 

highs passing through allows you to achieve classic 

analog/bucket brigade sounds, making your 

repeats sound darker and more saturated.  This 

type of setting works well for getting a smoother, 

dark, saturated trail from what you’re playing. 

This toggle enables expression pedal manipulation 

to either the Time parameter or the Repeat 

parameter.  Toggle left to manipulate the time with 

the lowest Time setting at toe-up and the highest 

setting desired at toe-down.  Toggle right to 

manipulate the repeats parameter with the lowest 

setting desired at toe-down and the highest setting 

at toe-up.

This turns the effect on and off.

Tap Switch:

In:

Tap this switch to set the time of your repeats

Insert the cable running from your instrument or 

preceding effect here.

Out 1 & 2:

Run a cable from Out 1 or 2 (or both) to the next 

effect or your amplifier.

FX Loop:

Use a TRS Y-cable to add an effect to the 

repeats/wet signal.

Exp:

Insert your TRS expression pedal here to manipu-

late either Time or Repeats.

9V:

Insert power here. Center negative, 9V DC, 100mA 

minimum 

The Level parameter controls the level of your repeats.  

At its lowest setting, you’ll hear no repeats.  Turn the 

parameter clockwise to bring up the volume of your 

repeats.  With the control dimed, your repeat volume 

will be higher than your dry instrument signal.  

For additional information go to www.walrusaudio.com

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*The use of an isolated power supply is recommended for powering all

 Walrus Audio Pedals. Daisy chain power supplies are not recommended.