Enclosure not stated · 4 knobs
Cosmo King
Based on the Royal CW-1 Cosmo Wah Machine· 1 other board clones it
- Category
- Vibrato / Chorus· Modulation, Wah, Ring Modulation
- Price
- $15.00in stock
From the vendor
Have you ever heard of the Royal Cosmo Wah? Neither had we, until it showed up on the Effects Database. With tremendous support from Bart, we've brought it back from the brink of being lost forever to the sands of forgotten effects.
In a nutshell, this is probably the great grand-daddy of the Snarling Dogs Mold Spore. While primitive in it's topology, it's quite musical for a ring-mod type effect. The added vibe on the trailing decay is a nice touch as well. With a small cap tweak, the wah isn't half bad either. All in all, it's a keeper!
As with some of our other wah shell based boards, this king drops right into any Dunlop wah shell.
Schematic
The schematic is in the vendor's build document, page 9. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 79 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 38 | ||||
| R1 | 27kocr | 27k | ||
| R2 | 150kocr | 150k | ||
| R3 | 3k6ocr | 3.6k | ||
| R4 | 27kocr | 27k | ||
| R5 | 150kocr | 150k | ||
| R6 | 10kocr | 10k | ||
| R8 | 20kocr | 20k | ||
| R9 | 220kocr | 220k | ||
| R10 | 1k8ocr | 1.8k | ||
| R11 | 10kocr | 10k | ||
| R12 | 10kocr | 10k | ||
| R13 | 220kocr | 220k | ||
| R14 | 220kocr | 220k | ||
| R15 | 1k8ocr | 1.8k | ||
| R16 | 220kocr | 220k | ||
| R17 | 20kocr | 20k | ||
| R18 | 220kocr | 220k | ||
| R19 | 27kocr | 27k | ||
| R20 | 220kocr | 220k | ||
| R21 | 27kocr | 27k | ||
| R22 | 220kocr | 220k | ||
| R23 | 220kocr | 220k | ||
| R24 | 1k8ocr | 1.8k | ||
| R25 | 10kocr | 10k | ||
| R26 | 150kocr | 150k | ||
| R27 | 1k8ocr | 1.8k | ||
| R28 | 27kocr | 27k | ||
| R29 | 10kocr | 10k | ||
| R30 | 1k8ocr | 1.8k | ||
| R31 | 220kocr | 220k | ||
| R32 | 220kocr | 220k | ||
| R33 | 1k8ocr | 1.8k | ||
| R34 | 150kocr | 150k | ||
| R35 | 22kocr | 22k | ||
| R36 | 220kocr | 220k | ||
| R37 | 22kocr | 22k | ||
| R38 | 10kocr | 10k | ||
| R39 | 27kocr | 27k | ||
| Capacitors 25 | ||||
| C3 | 10uocr | 10u | ||
| C4 | 10uocr | 10u | ||
| C6 | 10uocr | 10u | ||
| C7 | 10uocr | 10u | ||
| C9 | 10uocr | 10u | ||
| C11 | 10uocr | 10u | ||
| C12 | 10uocr | 10u | ||
| C13 | 10uocr | 10u | ||
| C15 | 10uocr | 10u | ||
| C20 | 10uocr | 10u | ||
| C21 | 10uocr | 10u | ||
| C18 | 100uocr | 100u | ||
| C22 | 100uocr | 100u | ||
| C1 | 220uocr | 220u | ||
| C2 | 33nocr | 33n | ||
| C5 | 33nocr | 33n | ||
| C8 | 100nocr | 100n | ||
| C10 | 33nocr | 33n | ||
| C14 | 33nocr | 33n | ||
| C16 | 4n7ocr | 4.7n | ||
| C17 | 4n7ocr | 4.7n | ||
| C19 | 4n7ocr | 4.7n | ||
| C23 | 470nocr | 470n | ||
| C24 | 470nocr | 470n | ||
| C25 | 470nocr | 470n | ||
| Diodes 1 | ||||
| D1 | 4001ocr | 4001 | ||
| Transistors 8 | ||||
| Q4 | 2SC828sch | 2SC828 | ||
| Q5 | 2SC828sch | 2SC828 | ||
| Q6 | 2SC828sch | 2SC828 | ||
| Q1 | 2SC828sch | 2SC828 | ||
| Q7 | 2sk30sch | 2SK30 | ||
| Q8 | 2SK30sch | 2SK30 | ||
| Q2 | 2N5088ocr | 2N5088 | ||
| Q3 | 2N5088ocr | 2N5088 | ||
| Potentiometers 4 | ||||
| Blend | B50Ksch | B50k | Potentiometer | |
| Volume | B50Ksch | B50k | Potentiometer | |
| VIBRATE | B100Kocr | B100k | Potentiometer | |
| TONE | A50Kocr | A50k | Potentiometer | |
| Trimmers 1 | ||||
| TRIM1 | 10ksch | 10k | ||
| Switches 2 | ||||
| SW1 | 3PDTocr | 3PDT | ||
| VIBE | SPDT ON/ONocr | SPDT ON/ON | ||
Other boards based on the Royal CW-1 Cosmo Wah Machine
- Royal CW-1 Cosmo Wah Machine Dirtbox Layouts