125B · 6 knobs
Effects Layouts· GKD52822
Gatekeeper
Based on the EQD Disaster Transport
- Category
- Delay
- Controls
- Depth · Mix · Rate · Repeats · Time · Tone
- Price
- $10.00in stock
From the vendor
The GATEKEEPER is an analog-voiced PT2399 delay with switchable modulation, based on the now discontinued EQD Disaster Transport. It offers up to 650ms of delay and the tone control allows you to filter out noise on longer delay times. The modulation has a wide range as well, and with it being on a footswitch it offers quite a bit of tonal flexibility.
Build doc
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Based on the EQD Disaster Transport
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 75 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 31 | ||||
| R1 | 1M | 1M | ||
| R2 | 470k | 470k | ||
| R3 | 220k | 220k | ||
| R4 | 470k | 470k | ||
| R5 | 47k | 47k | ||
| R6 | 47k | 47k | ||
| R7 | 100k | 100k | ||
| R8 | 22k | 22k | ||
| R9 | 22k | 22k | ||
| R10 | 10k | 10k | ||
| R11 | 10k | 10k | ||
| R12 | 47k | 47k | ||
| R13 | 10k | 10k | ||
| R14 | 10k | 10k | ||
| R15 | 22k | 22k | ||
| R16 | 10k | 10k | ||
| R17 | 22k | 22k | ||
| R18 | 220k | 220k | ||
| R19 | 10k | 10k | ||
| R20 | 2.2k | 2.2k | ||
| R21 | 150k | 150k | ||
| R22 | 10k | 10k | ||
| R23 | 120k | 120k | ||
| R24 | 10k | 10k | ||
| R25 | 15k | 15k | ||
| R26 | 470k | 470k | ||
| R27 | 470k | 470k | ||
| R28 | 100Ω | 100 | ||
| R29 | 100Ω | 100 | ||
| R30 | 10k | 10k | ||
| R31 | 10k | 10k | ||
| Capacitors 30 | ||||
| C8 | 1n | 1n | ||
| C9 | 100n | 100n | ||
| C10 | 100n | 100n | ||
| C11 | 22n | 22n | ||
| C12 | 22n | 22n | ||
| C13 | 2.2n | 2.2n | ||
| C14 | 1µ | 1u | ||
| C15 | 22n | 22n | ||
| C16 | 22n | 22n | ||
| C17 | 1µ | 1u | ||
| C18 | 1µ | 1u | ||
| C19 | 10µ | 10u | ||
| C20 | 100n | 100n | ||
| C21 | 100n | 100n | ||
| C22 | 100µ | 100u | ||
| C23 | 10n | 10n | ||
| C24 | 100µ | 100u | ||
| C25 | 100µ | 100u | ||
| C26 | 100n | 100n | ||
| C27 | 10µ | 10u | ||
| C28 | 100µ | 100u | ||
| C29 | 100n | 100n | ||
| C30 | 470n | 470n | ||
| C1 | 220n | 220n | ||
| C2 | 100p | 100p | ||
| C3 | 1µ | 1u | ||
| C4 | 1µ | 1u | ||
| C5 | 22n | 22n | ||
| C6 | 100n | 100n | ||
| C7 | 22n | 22n | ||
| Diodes 3 | ||||
| D1 | 1N4148 | 1N4148 | ||
| D2 | 1N4148 | 1N4148 | ||
| D3 | 1N5817 | 1N5817 | ||
| ICs 3 | ||||
| IC1 | TL072 | TL072 | ||
| IC2 | PT2399 | PT2399 | ||
| IC3 | JRC4558 | JRC4558 | ||
| Potentiometers 6 | ||||
| DEPTH | B100K | B100k | Potentiometer | |
| MIX | B5K | B5k | Potentiometer | |
| RATE | C1M | C1M | Potentiometer | |
| REPEATS | B5K | B5k | Potentiometer | |
| TIME | B50K | B50k | Potentiometer | |
| TONE | B25K | B25k | Potentiometer | |
| LEDs 2 | ||||
| LED1 | 3mm LED | 3MM LED | ||
| LED2 | 3mm LED | 3MM LED | ||