1590BB · 7 knobs
Earthquaker Devices Hoof ReaperVerified
Based on the EarthQuaker Devices Hoof Reaper· 4 other boards clone it
From the post
It's the last Fuzz Friday before Christmas, and as a present to you here's 3 effects in one–the Earthquaker Hoof Reaper. It combines the Tone Reaper fuzz, the Green Ringer (Tentacle) octave, and Hoof fuzz in one package. For the germanium transistors, originals use an AC176 in the Reaper side and 1N1308s in the Hoof, but others can (and have) been used, so socket and experiment. Also, it seems the originals have the Octave first from the input jack. So despite the footswitch arrangement, the signal goes, Input jack > Octave > Reaper > Hoof > Output Jack. Pots are all board mounted and it should fit in a 1590BB.
Hope everyone has a great holiday!
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 53 rows
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Check before you build · 2 values the reader of this layout was not sure of
- Small image (748 px wide): values read at 6x; 160K and 6.2K in the bottom row left of the vertical 47nF agree in both the board and the wiring diagram but are the least crisp readings
- Q1: the legend prints MPSA19, which is not a part; entered as MPSA18
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 20 | ||||
| ×3 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 330Ω | 330 | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×3 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 6.2K | 6.2k | read from the layout by eye | |
| ×2 | 8.2K | 8.2k | read from the layout by eye | |
| ×7 | 10K | 10k | read from the layout by eye | |
| ×3 | 15K | 15k | read from the layout by eye | |
| ×1 | 18K | 18k | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×2 | 39K | 39k | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×2 | 68K | 68k | read from the layout by eye | |
| ×4 | 100K | 100k | read from the layout by eye | |
| ×1 | 160K | 160k | read from the layout by eye | |
| ×1 | 390K | 390k | read from the layout by eye | |
| ×4 | 470K | 470k | read from the layout by eye | |
| ×1 | 560K | 560k | read from the layout by eye | |
| ×3 | 2.2M | 2.2M | read from the layout by eye | |
| Capacitors 11 | ||||
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×2 | 100pF | 100p | read from the layout by eye | |
| ×4 | 470pF | 470p | read from the layout by eye | |
| ×2 | 6.8nF | 6.8n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×9 | 100nF | 100n | read from the layout by eye | |
| ×4 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×3 | 1N4148 | 1N4148 | printed 4148; read from the layout by eye | |
| ×1 | 1N4001 | 1N4001 | printed 4001; read from the layout by eye | |
| Transistors 9 | ||||
| Q1 | MPSA18 | MPSA18 | printed 'MPSA19' on the drawing; read from the layout by eye | |
| Q2 | NPN Germanium | NPN GERMANIUM | legend: Q2, 7-8: NPN Germanium; read from the layout by eye | |
| Q3 | 2N5089 | 2N5089 | read from the layout by eye | |
| Q4 | 2N3906 | 2N3906 | PNP; read from the layout by eye | |
| Q5 | 2N5089 | 2N5089 | read from the layout by eye | |
| Q6 | 2N3904 | 2N3904 | read from the layout by eye | |
| Q7 | NPN Germanium | NPN GERMANIUM | legend: Q2, 7-8: NPN Germanium; read from the layout by eye | |
| Q8 | NPN Germanium | NPN GERMANIUM | legend: Q2, 7-8: NPN Germanium; read from the layout by eye | |
| Q9 | 2N3904 | 2N3904 | read from the layout by eye | |
| Potentiometers 7 | ||||
| Reaper Fuzz | B250K | B250k | Potentiometer | read from the layout by eye |
| Reaper Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Reaper Level | A100K | A100k | Potentiometer | read from the layout by eye |
| Hoof Fuzz | B50K | B50k | Potentiometer | read from the layout by eye |
| Hoof Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Hoof Shift | B25K | B25k | Potentiometer | read from the layout by eye |
| Hoof Level | A1M | A1M | Potentiometer | read from the layout by eye |
| LEDs 4 | ||||
| D1 | 3mm red LED | 3MM RED LED | on board; read from the layout by eye | |
| D2 | 3mm red LED | 3MM RED LED | on board; read from the layout by eye | |
| D3 | 3mm red LED | 3MM RED LED | on board; read from the layout by eye | |
| D4 | 3mm red LED | 3MM RED LED | on board; read from the layout by eye | |
Other boards based on the EarthQuaker Devices Hoof Reaper
- Earthquaker Devices Hoof Reaper Dirtbox Layouts
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