1590B · 3 knobs
Earthquaker Devices Special CrankerVerified
Based on the EarthQuaker Devices Special Cranker· 4 other boards clone it
From the post
Here's EQD's newest offering, the Special Cranker. Developed from the Speaker Cranker, this one is like two basic Electra's with switchable hard clipping diodes in between (1N60Ps like the original Speaker Cranker or Soviet germanium D9Ks). Easy fit for a 1590B.
Here's the schematic for reference.
Normally I throw a demo in, but just go look those up on YouTube, there's a bunch of them. I leave you with this vid instead. It's waay cooler anyway.
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 27 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 390Ω | 390 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 10M | 10M | read from the layout by eye | |
| Capacitors 4 | ||||
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×3 | 82nF | 82n | read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 8 | ||||
| D1 | BAT41 | BAT41 | read from the layout by eye | |
| D2 | 1N60P | 1N60P | read from the layout by eye | |
| D3 | 1N60P | 1N60P | read from the layout by eye | |
| D4 | 1N60P | 1N60P | read from the layout by eye | |
| D5 | D9K | D9K | read from the layout by eye | |
| D6 | D9K | D9K | read from the layout by eye | |
| D7 | D9K | D9K | read from the layout by eye | |
| ×1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N3904 | 2N3904 | read from the layout by eye | |
| Q2 | 2N3904 | 2N3904 | read from the layout by eye | |
| Potentiometers 3 | ||||
| More | B10K | B10k | Potentiometer | read from the layout by eye |
| Tone | A100K | A100k | Potentiometer | read from the layout by eye |
| Level | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Mode | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |
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