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PROJECT NAME
PERELANDRA
BASED ON
Xotic BB Preamp
EFFECT TYPE
Boost / Overdrive
PROJECT SUMMARY
A flexible drive pedal that can go from clean volume boost to smooth overdrive. Includes a 2-band tone
stack for treble & bass.
Actual size is 2.3" x 1.86" (main board) and 2.3" x 0.86" (bypass board).
This documentation is for the standard (non-deluxe) version of the project. Early PCBs of the
Deluxe version were labeled "Perelandra V2" rather than "Perelandra Deluxe". Please make sure
your PCB matches the above image (four knobs and no toggles) before proceeding since the part
numbering is different. The
PERELANDRA BOOST / OVERDRIVE
IMPORTANT NOTE
Perelandra Deluxe
is available as a separate project.
BUILD DIFFICULTY
Easy
DOCUMENT VERSION
2.0.0 (2021-10-22)
1
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Related Manuals for aion PERELANDRA
Summary of Contents for aion PERELANDRA
- Page 1 This documentation is for the standard (non-deluxe) version of the project. Early PCBs of the Deluxe version were labeled “Perelandra V2” rather than “Perelandra Deluxe”. Please make sure your PCB matches the above image (four knobs and no toggles) before proceeding since the part numbering is different.
-
Page 2: Table Of Contents
RC Booster is the presence of this Tube Screamer tone control stage to shape the tone going into the Baxandall EQ. Version 2 of the Perelandra is a full redesign based on traces of several versions of the BB Preamp in 2021. The PCB supports the standard BB Preamp (called the “version 1.5”), the AT (Andy Timmons) model, and the Bass BB Preamp. -
Page 3: Parts List
LED current-limiting resistor. Adjust value to change LED brightness. Film capacitor, 7.2 x 2.5mm Film capacitor, 7.2 x 3.5mm 100n in bass version. 47pF MLCC capacitor, NP0/C0G Film capacitor, 7.2 x 2.5mm Use 10uF for bass version. (positive leg to left pad) PERELANDRA BOOST / OVERDRIVE... - Page 4 BJT transistor, NPN, TO-92 Substitute. Original uses 2SC1815. 2N5088 BJT transistor, NPN, TO-92 Substitute. Original uses 2SC1815. JRC4558D Operational amplifier, DIP8 IC1-S DIP-8 socket IC socket, DIP-8 JRC4558D Operational amplifier, DIP8 IC2-S DIP-8 socket IC socket, DIP-8 PERELANDRA BOOST / OVERDRIVE...
- Page 5 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. PERELANDRA BOOST / OVERDRIVE...
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Page 6: Build Notes
• C15: 1uF → 10uF (positive leg should go in left pad; will need to position it overlapping R16) • R5: 10k → 4k7 • R6: 4k7 → 10k • R11: jumper • R14: 47k → 22k PERELANDRA BOOST / OVERDRIVE... -
Page 7: Schematic
SCHEMATIC 1N5817 100uF 47uF 100n VOLUME B 100kB 2N5088 IC1B IC1A JRC4558D JRC4558D 220n 47pF 220n GAIN BASS 50kB IC2A JRC4558D IC2B 150pF JRC4558D 2N5088 470R 50kB TREBLE PERELANDRA BOOST / OVERDRIVE... -
Page 8: Drill Template
DRIVE x: -0.65, y: +1.71 x: 0.65, y: +1.71 ø9/32” ø9/32” TREBLE BASS 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” PERELANDRA BOOST / OVERDRIVE... -
Page 9: Enclosure Layout
ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B PERELANDRA BOOST / OVERDRIVE... -
Page 10: Wiring Diagram
+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. PERELANDRA BOOST / OVERDRIVE... -
Page 11: Document Revisions
The guitar effects industry needs more transparency, not less!) DOCUMENT REVISIONS 2.0.0 (2021-10-22) Full redesign based on new traces of the BB Preamp 1.5, AT and Bass models. 1.0.0 (2018-09-22) Initial release. PERELANDRA BOOST / OVERDRIVE...
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