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PROJECT NAME
ISOTOPE
BASED ON
Intersound IVP Tube Voice
EFFECT TYPE
Tube-like overdrive
PROJECT SUMMARY
The overdrive channel of the Intersound IVP Preamp, adapted for pedal use.
Actual size is 2.3" x 1.86" (main board) and 1.78" x 0.86" (bypass board).
ISOTOPE AMP OVERDRIVE
BUILD DIFFICULTY
Intermediate
DOCUMENT VERSION
1.0.0 (2020-06-05)
1

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Summary of Contents for Aion Electronics Isotope

  • Page 1 Intermediate EFFECT TYPE DOCUMENT VERSION Tube-like overdrive 1.0.0 (2020-06-05) PROJECT SUMMARY The overdrive channel of the Intersound IVP Preamp, adapted for pedal use. Actual size is 2.3” x 1.86” (main board) and 1.78” x 0.86” (bypass board). ISOTOPE AMP OVERDRIVE...
  • Page 2: Table Of Contents

    The Isotope Amp Overdrive is a greatly reduced version of the IVP, extracting just the Tube Voice channel which makes up approximately 25% of the whole preamp circuit, which also includes a clean channel and 4-band parametric equalizer.
  • Page 3: Parts List

    10uF Electrolytic capacitor, 5mm 10uF Electrolytic capacitor, 5mm 100uF Electrolytic capacitor, 6.3mm Power filter capacitor. 10uF Electrolytic capacitor, 5mm 100uF Electrolytic capacitor, 6.3mm Charge pump negative supply filter capacitor. 100n MLCC capacitor, X7R Main power filter capacitor. ISOTOPE AMP OVERDRIVE...
  • Page 4 DC jack, 2.1mm panel mount Mouser 163-4302-E or equivalent. BATT Battery snap 9V battery snap Optional. Use the soft plastic type—the hard-shell type will not fit. 3PDT Stomp switch, 3PDT 125B Enclosure, die-cast aluminum Can also use a Hammond 1590N1. ISOTOPE AMP OVERDRIVE...
  • Page 5: Schematic

    1N5817 100uF 100uF 100n TC1044SCPA BYP_GND PWR_GND PWR_GND 470n 100uF PWR_GND BASS 50kB 100kA DRIVE 47pF 100n 100n TRANSFORMER IC1A TL072P IC2B TL072P RC4558P Q1 Q2 IC1B 2N5210 42TM018 IC2A RC4558P 100n 100n 470pF 2N5210 50kB TREBLE ISOTOPE AMP OVERDRIVE...
  • Page 6: Drill Template

    MASTER DRIVE x: -0.65, y: +1.71 x: 0.65, y: +1.71 ø9/32” ø9/32” BASS TREBLE x: -0.65, y: +0.41 x: 0.65, y: +0.41 ø9/32” ø9/32” CENTER (0,0) FOOTSWITCH x: -0.775, y: -1.20 x: 0, y: -1.20 ø5/16” ø15/32” ISOTOPE AMP OVERDRIVE...
  • Page 7: Enclosure Layout

    ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B ISOTOPE AMP OVERDRIVE...
  • Page 8: Wiring Diagram

    GND +V +V JACK GND JACK GND GND PCB 125B Shown with optional 9V battery. If battery is omitted, both jacks can be mono rather than one being stereo. Leave the far-right lug of the DC jack unconnected. ISOTOPE AMP OVERDRIVE...
  • Page 9: Document Revisions

    (In other words: you don’t have to go out of your way to advertise the fact that you use these PCBs, but please don’t go out of your way to hide it. The guitar effects industry needs more transparency, not less!) DOCUMENT REVISIONS 1.0.0 (2020-06-05) Initial release. ISOTOPE AMP OVERDRIVE...

Table of Contents