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PROJECT NAME
VELORUM
BASED ON
Ibanez/Vemuram TSV808
EFFECT TYPE
Overdrive
PROJECT SUMMARY
A limited-edition collaboration between Ibanez and Vemuram that combines elements of the Tube
Screamer and Jan Ray to create a highly tweakable transparent overdrive.
Actual size is 2.3" x 1.86" (main board) and 2.3" x 0.86" (bypass board).
VELORUM DYNAMIC OVERDRIVE
BUILD DIFFICULTY
Easy
DOCUMENT VERSION
1.0.0 (2024-07-04)
1
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Table of Contents
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Summary of Contents for aion VELORUM
- Page 1 A limited-edition collaboration between Ibanez and Vemuram that combines elements of the Tube Screamer and Jan Ray to create a highly tweakable transparent overdrive. Actual size is 2.3” x 1.86” (main board) and 2.3” x 0.86” (bypass board). VELORUM DYNAMIC OVERDRIVE...
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Page 2: Table Of Contents
DIP switches inside the pedal to select between symmetric and asymmetric clipping modes. The Velorum project is a direct adaptation of the TSV808, but with all controls moved to the front of the enclosure for easy access. The trimmers have been converted to standard potentiometers. The DIP... -
Page 3: Parts List
Film capacitor, 7.2 x 3.5mm 150pF MLCC capacitor, NP0/C0G Film capacitor, 7.2 x 3.5mm 47uF Electrolytic capacitor, 5mm Reference voltage filter capacitor. 100uF Electrolytic capacitor, 6.3mm Power supply filter capacitor. 100n MLCC capacitor, X7R Power supply filter capacitor. VELORUM DYNAMIC 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. VELORUM DYNAMIC OVERDRIVE...
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Page 5: Build Notes
The range of the Drive control is impacted by the position of the Saturation control, but if you have the Saturation set where you like it and it doesn’t have enough gain at maximum, you can increase the Drive control to 1MA. VELORUM DYNAMIC OVERDRIVE... -
Page 6: Schematic
SCHEMATIC 100R 1N5817 100uF 47uF 100n TREBLE IC1A IC1B 10kB OPA2134A OPA2134A 100R 22pF 1N914 1N914 150pF CLIP A CLIP B 1N914 1N914 51pF DRIVE 500kA 100n VELORUM DYNAMIC OVERDRIVE... -
Page 7: Drill Template
+0.775, y: +1.71 ø9/32” ø9/32” ø9/32” VOLUME CLIP DRIVE x: -0.775, y: +0.41 x: 0, y: +0.41 x: +0.775, y: +0.41 ø9/32” ø1/4” ø9/32” CENTER (0,0) FOOTSWITCH x: -0.775, y: -1.20 x: 0, y: -1.20 ø5/16” ø15/32” VELORUM DYNAMIC OVERDRIVE... -
Page 8: Enclosure Layout
ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B VELORUM DYNAMIC OVERDRIVE... -
Page 9: 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. VELORUM DYNAMIC OVERDRIVE... -
Page 10: 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 (2024-07-04) Initial release. VELORUM DYNAMIC OVERDRIVE...
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