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Mad Bean Pedals Aquaboy Deluxe 2019 Manual

Fx type: delay, enclosure size: 1590bb or 125bb, based on the boss dm-2tm

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AquaboyDLX_2019
FX TYPE: DELAY
Enclosure Size: 1590BB or 125BB
Based on the Boss® DM-2™
Softie compatability: none
© 2019
madbeanpedals
The 2019 version of the Aquaboy Deluxe is a complete re-design of the 2015 project. This version
incorporates many of the requested features lacking in the previous version: 15v operation, on-
board charge pump, and both true bypass and tails footswitches. It keeps the same 1590BB
footprint, although a 125BB is also a good choice. The ABDX has about 550ms of delay and includes
modulation (triangle and squarewave).
This is complex project that should not be under-taken by novice builders. It is also a costly project
to make. The BBD chips, clock and compander alone will set you back $50 or so. However, this is
the type of project where money spent will go a long way toward making a unique and professional
sounding delay AND still be cheaper than many commercially available analog delays with similar
features.
NOTE: smallbear is currently out of the Xvive MN3005 re-makes. So, if you do not already have these
you may be waiting a while to get them. I do not have any sources for the NOS MN3005 and most
likely neither does anyone else. Hopefully, smallbear will be able to get more of the re-makes soon.
You will need a multimeter, audio probe and some kind of testing rig/breadboard set-up to get the
ABDX properly set-up.
DELAY: The total amount of signal delay from slapback to approximately 500ms.
FDBK: The number and intensity of delay repeats from one to infinity/self oscillation.
MIX: The level of delay signal relative to the dry path of the guitar signal.
RATE: The speed of the delay modulation from slowest to very fast.
DEPTH: The intensity of modulation from moderate to extreme.
MOD: This On/Off/On DPDT allows you to choose between square, none and triangle modulation.
T1: Sets the maximum amount of feedback possible in order to control the total range of the FDBK
control.
BIAS1, BIAS2: Used to set the biasing point on the input of each BBD.
CANCEL: Sets the mix of the two outputs on BBD2.
CLOCK: Sets the lower limit of the clock frequency used to drive the BBD chips.
Terms of Use:
You are free to use purchased AquaboyDLX_2019 circuit boards for both DIY and small commercial operations. You may not
offer AquaboyDLX_2019 PCBs for resale or as part of a "kit" in a commercial fashion. Peer to peer re-sale is fine, though.
Technical assistance
for your build(s) is available via the
assistance on builds. This is because (1) I'm not always available to respond via email in a timely and continuous manner, and (2)
posting technical problems and solutions in the forum creates a record from which other members may benefit.
Overview
Controls
Trimmers
madbeanpedals
forum. Please go there rather than emailing me for

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Summary of Contents for Mad Bean Pedals Aquaboy Deluxe 2019

  • Page 1 AquaboyDLX_2019 FX TYPE: DELAY Enclosure Size: 1590BB or 125BB Based on the Boss® DM-2™ Softie compatability: none © 2019 madbeanpedals Overview The 2019 version of the Aquaboy Deluxe is a complete re-design of the 2015 project. This version incorporates many of the requested features lacking in the previous version: 15v operation, on- board charge pump, and both true bypass and tails footswitches.
  • Page 2 AquaboyDLX_2019 Parts madbeanpedals...
  • Page 3 AquaboyDLX_2019 Values madbeanpedals...
  • Page 4 AquaboyDLX_2019 Traces madbeanpedals...
  • Page 5 AquaboyDLX_2019 B.O.M. Resistors Resistors Caps Caps Regulator L7815 10uF Photocell 470k LDR1 9203 Swtiches 100pF 22uF 100pF 10uF On/Off/On 100pF TAILS 3PDT 100uF 3PDT 100n Trimmers 10uF CANCEL 100R 10uF 10uF BIAS1 150R 470k 100n 100uF BIAS2 100k 470k 220n 10uF 100k 220k...
  • Page 6: Shopping List

    AquaboyDLX_2019 Shopping List Value Type Rating Value Type Rating Metal / Carbon Film 1/4W 10uF BP Electrolytic, Bi-Polar 25v min. 100R Metal / Carbon Film 1/4W Electrolytic 25v min. Metal / Carbon Film 1/4W 10uF Electrolytic 25v min. Metal / Carbon Film 1/4W 22uF Electrolytic...
  • Page 7: Parts Guide

    AquaboyDLX_2019 Parts Guide 10uF BP: https://www.mouser.com/ProductDetail/Panasonic/ECE-A1EN100U?qs=sGAEpiMZZMtZ1n0r9vR22ZGaUoI0JcRfXPh%2F zavJdWI%3D 15v Zener: https://www.mouser.com/Search/Refine?Keyword=512-1N4744A MPSA18: https://www.mouser.com/ProductDetail/Central-Semiconductor/ MPSA18?qs=sGAEpiMZZMshyDBzk1%2FWiw99kSkYzPxmglTcpIOZtXI%3D BS250p: https://www.mouser.com/ProductDetail/Diodes-Incorporated/ BS250P?qs=%2Fha2pyFaduhUNPEB3rTpwbpDH35b3gpFVXgc39Dgjmg%3D v571 (sub for NE570): http://smallbear-electronics.mybigcommerce.com/ic-v571d/ MN3005 (currently out of stock): http://smallbear-electronics.mybigcommerce.com/mn3005-re-makes-xvive-audio/ MN3101: http://smallbear-electronics.mybigcommerce.com/ic-mn3101/ LT1054: https://www.mouser.com/ProductDetail/Texas-Instruments/ LT1054IP?qs=sGAEpiMZZMtitjHzVIkrqfSWpcWTPe%252BSNc10CtLc4Cw%3D L7815: https://www.mouser.com/ProductDetail/STMicroelectronics/ L78L15ACZ?qs=sGAEpiMZZMtUqDgmOWBjgLAmId5B%2FjmHe8yhWKd8M1Y%3D 9203: http://smallbear-electronics.mybigcommerce.com/photocells-cds-5mm-diameter/ DPDT (On/Off/On): http://smallbear-electronics.mybigcommerce.com/dpdt-center-off-pc-mount/ Bourns 3362p (10k, 25k, 50k, 1M): https://www.mouser.com/ProductDetail/Bourns/3362P-1-103LF?qs=sGAEpiMZZMvygUB3GLcD7k%252Bod3ZqvEIQboR RPdOKB6M%3D...
  • Page 8 AquaboyDLX_2019 Analog Delay Basics The BBD is made up of hundreds or thousands of tiny mosfet transistors (called steps) that delay the input signal via capacitive charging (each step may also be referred to as a clock cycle). The more steps in the device the longer the signal can be delayed.
  • Page 9 AquaboyDLX_2019 Notes Changes to the 2019 version circuit • 15v operation: The entire circuit now runs of 15v regulated from a standard 9v 100mA power supply. A well-regulated supply is still the preferred option for lowest noise. • Charge Pump: The charge pump bumps up the 9v supply to 18v then regulates it to 15v for the effect.
  • Page 10 AquaboyDLX_2019 Notes Calibration Before starting, remove IC4. This is necessary to start the biasing process. Set the controls as shown. • DELAY, MIX controls to their center position. • FDBK at about 1/3 up. • RATE and DEPTH controls all the way down. •...
  • Page 11 Wiring Diagram AquaboyDLX_2019 The LED indicators for the two bypass switches as well as LED4 (modulation rate indicator) should be soldered directly to the PCB. madbeanpedals...
  • Page 12 AquaboyDLX_2019 1590BB Drill Guide Note: Drill Guides are approximate and may require tweaking depending on the types of jacks, switches and pots you use. A 125BB enclosure is the same foot-print but taller than the 1590BB shown here. If you like more room to work with, use this template with the 125BB and just move the top jacks up accordingly.
  • Page 13 Voltages AquaboyDLX_2019 TL072 MN3005 TL062 Q3 MPSA18 14.88 varies 14.97 7.11 varies 5.84 7.49 6.38 varies 5.26 6.38 Q4 MPSA18 7.49 200mV 14.97 7.04 0.63 5.23 0.63 4.66 14.97 0.97 14.9 BS250p NE570 MN3005 LT1054 9.42 1.08 17.88 1.63 ignore 1.77 7.12 9.26...
  • Page 14 Build Pic AquaboyDLX_2019 It’s a good idea to put some heat-shrink (or other light blocking material) over your LED/LDR combo. At least while testing it before boxing! Tip: Use an MLCC or Mica 100pF for C37 and a Delay pot that measures as close to 1M as possible.
  • Page 15 AquaboyDLX_2019 Schematic madbeanpedals...

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