Enclosure not stated · 2 knobs
Escobedo Octup!Verified
Based on the Escobedo Octup!
- Category
- Octave / Pitch
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Escobedo, Octave
From the post
Here's a clean octave up effect from Tim Escobedo. The Bias control offer subtle changes, which is why I have it as an external pot. He mentioned it might need a booster in front of it, just FYI.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 12 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 3 | ||||
| ×4 | 1M | 1M | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| Capacitors 3 | ||||
| ×4 | 100nF | 100n | read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | MPSA13 | MPSA13 | legend: MPSA13, MPSA14; read from the layout by eye | |
| Q2 | J201 | J201 | JFET; legend: J201, 2N5457; read from the layout by eye | |
| Q3 | J201 | J201 | JFET; legend: J201, 2N5457; read from the layout by eye | |
| Potentiometers 2 | ||||
| Bias | B100K | B100k | Potentiometer | printed 100K Lin; read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | printed 100K Log; read from the layout by eye |