Ampt Analoger ADG-1 SE User manual

Analoger™ ADG-1
Special Edition
100% Analog Bucket Brigade Delay
User Manual Addendum Revision B
Supplement to the ADG-1 Rev C user Manual
Last Revision 3/18/2022

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Introduction
Thank you for your purchase of the Asheville Music Tools Analoger™
Series ADG-1 SE Special Edition Analog Delay.
This pedal, engineered by renowned analog delay designer Hawker,
features three reissue high voltage Bucket Brigade Delay lines for over
1.06 seconds of pure analog delay. The sophisticated control voltage
topology and onboard Low Frequency Oscillator guarantee the best sound,
features, and control available in any fully analog delay currently on the
market. We hope you enjoy many years of use from your delay and find it
as inspiring and fun to play as we have.
The ADG-1 SE is a hand-modified special edition of our famed Analog
Delay. We will only produce this in small, low-volume batches. Starting
with the same features as our regular ADG-1 700ms analog delay, we have
added some additional special features:
•A 3
rd
analog delay bucket has been added allowing you to
switch between a single bucket for delay times of 16ms -
350ms or 3 buckets for delay times of 50ms - 1.06s.
•The addition of a TRS Delay Loop Insert, enabling injecting
effects such as an EQ or octave pedals into the delay loop
chain to successively affect each repeat.
•The addition of a center off switch to the LFO module as an
upgrade from the Rev A ADG-1.
•A special color shifting, high gloss sparkling 2-layer
Chameleon Teal powder coat that changes color in the light
adding durability with a color popping metallic sparkle look.
•Upgraded genuine GØRVA Obelisk solid aluminum knobs.
This manual is intended to supplement the ADG-1 Rev C manual written
for our standard 700ms 2 BBD delay. We recommend reading the
standard ADG-1 manual first. This short addendum is intended only to
highlight the changes from that manual.

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Operation
The ADG-1 SE front panel controls are nearly identical to the ADG-1
standard version. The only differences are in the Delay section, the LFO
switch, and the additional Delay insert.
DELAY MODULE
TIME: The TIME knob adjusts the delay
time from 16ms (1 BBD) to ~1.06s (3
BBDs). If you change the delay time
while playing, you will also notice a pitch
change as the signal currently captured in
the BBDs is spit out faster or slower,
therefore compressing or expanding the
delay time. This is how analog delays
make that great pitch-up or dive-bomb
sound. Try playing with a short delay
with lots of feedback then quickly turning
the knob clock-wise for massive dive bombs.
Note: Longer delay times will change the high frequency roll off. In
addition, very short or long delay times will reduce the level. Therefore,
the tone or feedback levels may be different in 1 or 3 bucket mode or the
standard ADG-1 in 2 bucket mode, even if the delay time is the same.
BUCKET SWITCH: selects whether the sound you are hearing travels
through 1 or 3BBDs (4096 or 12,288 stages) and so thirds or triples the
delay time (16-350ms vs 50ms – 1060ms). While there clearly is overlap in
the settings, as you can often get the same delay time from either setting,
the tone is slightly different in each so you may prefer one setting over the
other. In general, use the down position for long reverberant delays. Use
the up position for more sparkly shimmering delays, or when doing chorus
or flange-like sounds.

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LFO MODULE
The ADG-1 SE LFO module is the same
as our standard ADG-1. It contains a
center off switch so that you may “kill”
the modulation with the flick of a switch.
Please note: due to internal offsets, the
center off and the mod kill switch may
give slightly different “off” TIME settings.
Delay Insert
The ADG-1 SE contains a delay insert jack to the right of the controls. This
feature is traditionally only found in very advanced delays, including some
of Hawker’s past designs. The insert may be used to successively change
the sound of the repeats. It is inserted post buckets and compandor, but pre
tone control and feedback such that it will successively change the delay
repeats only and not affect the dry signal.
Unlike some classic effects, the ADG-1 SE Delay insert
will affect the first repeat and every one after that. Try
inserting an EQ or Phaser into the chain for some great
tonal changes. An octave up or down effect is also a
great trick as each repeat will shift up or down octave as
they degrade. Lastly, you may wish to simply have a
gain control for some wild self-oscillating feedback
ability. You may wish to add more complex EQ or Tone
controls here so that it doesn’t get carried away with self-oscillation.
To use this feature plug a TRS “insert” cable, such as a Hosa STP-201RR
Right Angle insert cable into the jack. The Ring contains the effect out and
the Tip is the loop return (Note: Rev A is Tip Out, Ring Return). Be sure
your device can handle the level output. Please note that any level change
from input to output will affect the feedback controls and output volume,
so you may need to have a gain or level stage control make up if your
device does not provide unity gain or work at stompbox levels.

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Modifications:
From time to time, AMpT will release inside ideas for custom modifying
our pedals. These modifications should only be attempted by experienced
users with good technical SMT chops. Any damage to your ADG-1 based
on workmanship in modifications will not be covered by your warranty.
Perform at your own risk!
Secret Limiter Modification:
Shhh... Don’t tell anyone. And whatever you do, don’t let classic ADG-1
owners know they can do the same trick. The ADG-1 SE contains two
limiters that add compression to your signal. One limiter is on the wet
signal the other is on the dry signal. A resistor and a solder blob sets the
amount of limiting. The resistors here are SMT 0805 package, 1% tol.
Wet signal Limiting:
The mix amp combines the post drive and
feedback signals and contains an aggressive
limiter. This limiter helps to prevent the input
signal from overdriving the buckets and
compandor. It also enables you to play over
infinite repeats without the feedback
overwhelming your playing. If you do not use a
lot of drive or feedback you may prefer less
limiting. To remove limiting all together remove
the “solder blob” from JP1 on the right middle
side of the PCB. Or to reduce it change R1 from 3.92k stock to a larger
value. Try 5-50k for starters.
Dry signal Limiting:
The dry signal contains a limiter that keeps
highly driven signals at a more similar volume
level to the wet signal. To reduce the limiting
change R11 (located in the middle left side of
the PCB) from 4.75k to a larger value. Try 10-
100k for starters.

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Functional Specifications:
Note: All specifications subject to change at the whim of our overloads.
Time, Feedback, Rate and Amount control range all extended with the
use of Expression Pedal or control voltage input.
•Delay Time: 50ms – 1060ms Bucket switch down (all BBDs),
17ms – 350ms with switch up. 13ms – 1350ms with LFO or
Control Voltages. CV is log V/Octave input.
•Feedback: 0 to greater than infinite. Capable of self-oscillation.
•Rate: LFO RATE, from 0.08Hz to 40Hz (75Hz with CV control)
•Amount: LFO depth control from OFF to 56% of TIME sweep.
•Drive: up to +23dB of control or level matching.
•Mix: Center 50%. Adjust from near 100% wet to -44dB dry
•Tone: ~605Hz center tilt like filter. Center = Flat to 0.25dB
High +5dB to -12dB, Low +4dB to -7dB.
•Bucket Toggle: 1 or 3 BBDs (4096 or 12288 buckets)
•LFO toggle: Rounded triangle, slewed square wave, or OFF
•Bypass Footswitch: effect on/off user selectable True Bypass or
JFET Buffered
•Tails/Mod Footswitch: User selectable modulation kill or engage
tails bypass (sometimes called Spillover).
•Expression Switch: 4 position rotary selects Time, Feedback,
Rate or Amount controlled by expression pedal. Time is bi-polar
and log input modulation (0V=-50%, 5V=+50%) all others are
additive and linear control.
Under the hood switches: (Accessible by removing ADG-1 Cover)
• True Bypass / Buffered bypass: Selects between true bypass and
classic JFET buffered bypass
• 2nd Stomp Switch function: Selects if 2
nd
stomp switch
enables/disables modulation or is Tails mode.

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Electrical Specifications: (subject to change)
• Type: 100% Analog signal and control path
• Power: 9VDC @ <150mA. 80-150mA typical. Up to 400mA
start up. Standard pedal center negative 2.1mm x 5.5mm barrel.
• Bypass: Switchable true bypass or JFET-buffered bypass with
switchable tails
• Expression / CV input: TRS input assignable to Time,
Feedback, Mod Rate or Mod Amount, (CV range is 0-5V). Ring
supplied current limited 5V output. Control input on Tip.
• Feeback Insert: TRS input with send and return on jack.
Attenuated to -6dB below post drive level. Level dependent on
drive control.
• Delay Time: <35ms – 1060ms Triple BBD mode, 17ms - 350ms
single bucket mode. 13ms – 1350ms with LFO or Control
Voltages
• Input impedance: >1MΩ
• Output impedance: 1KΩMax (5k max for buffered bypass)
• Max input level: +15dBµ (4.3V RMS)
• Max output level: +14dBµ (3.9V RMS)
• Maximum drive: >23dB (covers attenuation to gain)
• Noise Reduction: 2:1 broadband with 12dB HF emphasis
Physical Specifications:
• Genuine Hammond™ die-cast aluminum enclosure
• Dimensions: D=4.95” (12.5 cm), W=3.75” (9.4 cm), H=2.25”
(5.8 cm)
• Weight: 15.5oz (440g)

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ADG-1 Special Edition Presets:
The following are ideas for setting your ADG-1 SE. Since all analog
products have some variability, the exact knob setting may be slightly
different from that shown in these presets. Experiment and enjoy.
Reverberant Lead: Subtly modulated
long delay with overdrive. Great for
lead licks. Crank up the DRIVE for an
even more aggressive sound or dial it
back and try it with arpeggios.
Cavernous Hallway: Hello? Hello?
Hello? Is there anybody in there? Do
we have an echo in here? Reverberant
echoes. Try dialing up some
modulation for more fun.
(Modulation off)
Fold Under (low pass) Delay: Long
repeat delay where each echo slowly
becomes less and pronounced as it
fades out. Each repeat loses detail and
folds under your mix allowing you to
play over without delay tails getting
in the way. Perfect for late night
ambient jams. (Modulation off)

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Springy Bubbles: Silly gurgling
nonsense. Have fun and don’t laugh
too hard, especially if you dial up the
AMOUNT more. Pro Tip: Use an
expression pedal on the RATE or
AMOUNT to get audio rate
modulation. Adjust AMOUNT or flip
the wave shape for stuttering warbles
like a broken film projector (younger
players, ask your parents about 16mm school projectors)
Faux Flanger: Phased hollow delay
with peaky and present movement. It
is similar to a flanger, yet with longer
delay times. Adjust the FEEDBACK
to find that sweet spot right before
oscillation and the AMOUNT to
bring out the tone the best.
Wet Pseudo Chorus: A long drippy,
lush, chorused sound with longer than
average delay times. Dial in RATE
and AMOUNT until you get it just
right. TIME sets the level of drip.
Way out dude! Only use a chorus
pedal on one song? You are covered!

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Tin Pan Alley. A unique hollow,
peaky sound that is more tonal than
delay. Sounds like you are at the end
of a tunnel talking through an old
telephone.
(Modulation off)
Square Jumps: Tune this by ear
(using AMOUNT and TIME
controls) for a bouncy, whimsical
octave echo or a chaotic, atonal
warble!
Tape Wash: Bright repeats fade
away into the ether. No motor repair
necessary. Wow others with the
flutter.
(Modulation off)

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Lead Fattener: Make your solo
stand out of the mix. Bonus points if
you turn your amp to 11.
(Modulation off) Alternatively, try a
hair of modulation with RATE
around 12:00 and just a hair on the
AMOUNT knob
Lofi Vibes: Take advantage of the
ADG-1's lush filter to construct a lo-
fi vibrato evocative of vintage
recordings.
Slap Back Delay: Short delay
doubling. Chicken-Pickin’ and finger
licken’ good.
(Modulation off)

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Tools To Inspire Your reative Muse
Proudly Designed, Manufactured, Machined & Assembled in the
mountains of Western North Carolina
Changelog
Revision
Date
Notes
Rev B 03/18/2022 2022 Logo and Art updates
Rev A1 10/18/2021 Production Release:
Rev A 09/26/2021 Production Pre-Release:
Rev 1 08/29/2021 Prototype Manual
Visit our website for more information, mods, hacks, and presets.
www.AshevilleMusicTools.com