Enclosure not stated · 6 knobs
CheckMate VibrotremSynchronized Vibrato and Tremolo
- Category
- Tremolo
- Price
- see vendor
From the vendor
I've had a hankering to try a tempo-synchronized tremolo and vibrato for some time. Together, the two effects can create some fun textures, and having the LFO's synchronized allows for some mild rotary-esque sounds, though this is not a rotary emulator. I wanted to make one that was easily DIY-able, but the vibrato can be a bit of a challenge. I decided to use the ES56033 and modulate its delay time due to its short minimum delay time of about 14 ms (half the PT2399). It's a little weird, but it sounds pretty cool.
Schematic
The schematic is in the vendor's build document, page 1. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 66 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 28 | ||||
| R1 | 1M | 1M | ||
| R3 | 100k | 100k | ||
| R4 | 10k | 10k | ||
| R5 | 10k | 10k | ||
| R6 | 100k | 100k | ||
| R7 | 1k8 | 1.8k | ||
| R8 | 220k | 220k | ||
| R9 | 220k | 220k | ||
| R10 | 220k | 220k | ||
| R11 | 10k | 10k | ||
| R12 | 10k | 10k | ||
| R13 | 10k | 10k | ||
| R14 | 10k | 10k | ||
| R16 | 1k | 1k | ||
| R17 | 10k | 10k | ||
| R18 | 2k2 | 2.2k | ||
| R19 | 4k7 | 4.7k | ||
| R20 | 1k | 1k | ||
| R21 | 1k | 1k | ||
| R22 | 22k | 22k | ||
| R24 | 470R | 470 | ||
| R26 | 100k | 100k | ||
| R27 | 120R | 120 | ||
| R28 | 47R | 47 | ||
| R29 | 220k | 220k | ||
| R30 | 4k7 | 4.7k | ||
| R31 | 10k | 10k | ||
| R32 | 820R | 820 | ||
| Capacitors 21 | ||||
| C1 | 100n | 100n | ||
| C2 | 100u | 100u | ||
| C3 | 100p | 100p | ||
| C4 | 47u | 47u | ||
| C5 | 47u | 47u | ||
| C6 | 220p | 220p | ||
| C7 | 100n | 100n | ||
| C8 | 100u | 100u | ||
| C9 | 100n | 100n | ||
| C10 | 100n | 100n | ||
| C11 | 4n7 | 4.7n | ||
| C12 | 4n7 | 4.7n | ||
| C13 | 100n | 100n | ||
| C14 | 100n | 100n | ||
| C16 | 10n | 10n | ||
| C17 | 10n | 10n | ||
| C19 | 1u | 1u | ||
| C20 | 1u | 1u | ||
| C21 | 10u | 10u | ||
| C22 | 1u | 1u | ||
| C25 | 4u7 | 4.7u | ||
| Diodes 1 | ||||
| D1 | DO41 | DO41 | ||
| Transistors 1 | ||||
| Q1 | 2N5088 | 2N5088 | ||
| ICs 4 | ||||
| IC1 | TLC2272 | TLC2272 | ||
| IC2 | LM78L05 | LM78L05 | ||
| IC3 | ES56033 | ES56033 | ||
| IC4 | LM4558N | LM4558N | ||
| Opto 1 | ||||
| LDR1 | LDR1 | LDR1 | ||
| Potentiometers 6 | ||||
| MIX | B50k | B50k | ||
| SHAPE | B500k | B500k | ||
| SPEED | B100k | B100k | ||
| TONE | B10k | B10k | ||
| T_DEPTH | B1k | B1k | ||
| V_DEPTH | A1k | A1k | ||
| LEDs 4 | ||||
| D2 | LED | LED | ||
| D3 | LED | LED | ||
| D4 | LED | LED | ||
| R2 | RLED | RLED | ||