Enclosure not stated · 1 knob
SH2 (SpaceHarp) Phaser
Based on the Electro-Harmonix Small Stone· 8 other boards clone it
From the vendor
The SH2 is a 4 stage DIY PHASER project based on the EHX V2 Small Stone. This is the version that comes to mind when most players think of the classic effect.
Compared to our original Spaceharp project (which was the older V1), this one uses a different input stage, feedback network/color sound, and a different LFO section.
ERRATUM: The silkscreen on the rear of the pcb reads 100KB for the rate pot. This should read 1MC, as listed in the build doc.
Open the build document to read more…
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 74 rows
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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 47 | ||||
| R1 | 100kocr | 100k | ||
| R24 | 27kocr | 27k | ||
| R2 | 470kocr | 470k | ||
| R25 | 27kocr | 27k | ||
| R3 | 10kocr | 10k | ||
| R26 | 10kocr | 10k | ||
| R4 | 4k7ocr | 4.7k | ||
| R27 | 10kocr | 10k | ||
| R5 | 470kocr | 470k | ||
| R28 | 4k7ocr | 4.7k | ||
| R6 | 27kocr | 27k | ||
| R29 | 22kocr | 22k | ||
| R7 | 30kocr | 30k | ||
| R30 | 47kocr | 47k | ||
| R8 | 47kocr | 47k | ||
| R31 | 2kocr | 2k | ||
| R9 | 47Rocr | 47 | ||
| R32 | 7k5ocr | 7.5k | ||
| R10 | 15kocr | 15k | ||
| R33 | 27kocr | 27k | ||
| R11 | 1kocr | 1k | ||
| R34 | 100Rocr | 100 | ||
| R12 | 30kocr | 30k | ||
| R35 | 2M2ocr | 2.2M | ||
| R13 | 27kocr | 27k | ||
| R38 | 4k7ocr | 4.7k | ||
| R14 | 10kocr | 10k | ||
| R39 | 270Kocr | 270k | ||
| R15 | 1kocr | 1k | ||
| R40 | 27kocr | 27k | ||
| R16 | 27kocr | 27k | ||
| R41 | 4k7ocr | 4.7k | ||
| R17 | 27kocr | 27k | ||
| R42 | 3k3ocr | 3.3k | ||
| R18 | 10kocr | 10k | ||
| R43 | 10kocr | 10k | ||
| R19 | 1kocr | 1k | ||
| R44 | 470Rocr | 470 | ||
| R20 | 27kocr | 27k | ||
| R45 | 27kocr | 27k | ||
| R21 | 27kocr | 27k | ||
| R46 | 1k8ocr | 1.8k | ||
| R22 | 10kocr | 10k | ||
| R47 | 1kocr | 1k | ||
| R23 | 1kocr | 1k | ||
| R48 | 15kocr | 15k | ||
| R390 | 47kocr | 47k | ||
| Capacitors 14 | ||||
| C1 | 6n8ocr | 6.8n | ||
| C2 | 6n8ocr | 6.8n | ||
| C3 | 6n8ocr | 6.8n | ||
| C4 | 10µFocr | 10u | ||
| C5 | 1µFocr | 1u | ||
| C6 | 6n8ocr | 6.8n | ||
| C7 | 100nocr | 100n | ||
| C8 | 220uocr | 220u | ||
| C9 | 6n8ocr | 6.8n | ||
| C10 | 33µFocr | 33u | ||
| C11 | 10µFocr | 10u | ||
| C12 | 33µFocr | 33u | ||
| C13 | 100nocr | 100n | ||
| C16 | 100nocr | 100n | ||
| Diodes 1 | ||||
| D1 | 1N4001ocr | 1N4001 | ||
| Transistors 7 | ||||
| Q1 | 2n5088ocr | 2N5088 | ||
| Q2 | 2n5087ocr | 2N5087 | ||
| Q4 | 2n5088ocr | 2N5088 | ||
| Q5 | 2n5087ocr | 2N5087 | ||
| Q7 | 2n5088ocr | 2N5088 | ||
| Q8 | 2n5087ocr | 2N5087 | ||
| Q6 | 2n5088ocr | 2N5088 | ||
| ICs 3 | ||||
| X1 | LM13700ocr | LM13700 | ||
| X2 | LM13700ocr | LM13700 | ||
| X3 | LM13700ocr | LM13700 | ||
| Potentiometers 1 | ||||
| RATE | 1MCocr | C1M | Potentiometer | |
| Switches 1 | ||||
| Color | DPDTocr | DPDT | ||
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