Enclosure not stated · 3 knobs
JMK PCBs· 012
Classic Tremolo
Based on the EA Tremolo· 8 other boards clone it
- Category
- Tremolo
- Difficulty
- Easy
- Price
- $9.00out of stock
From the vendor
As long as DIY effects have been available, the JFet Bias tremolo has been available and popular. This version features some common modifications, including the volume boost option, and the ‘blinking LED’ option as well. This effect sounds great, is versatile, and is a very easy build.
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 30 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| R1 | 1K | 1k | ||
| R9 | 10K | 10k | ||
| R2 | 68K | 68k | ||
| R10 | 10K | 10k | ||
| R3 | 15K | 15k | ||
| R11 | 180R | 180 | ||
| R4 | 2.2M | 2.2M | ||
| R12 | 1.2K | 1.2k | ||
| R5 | 120K | 120k | ||
| R13 | 560K | 560k | ||
| R6 | 1M | 1M | ||
| R14 | 150K | 150k | ||
| R7 | 1M | 1M | ||
| R15 | 4.7K | 4.7k | ||
| R8 | 1M | 1M | ||
| Capacitors 7 | ||||
| C1 | 1uF | 1u | ||
| C2 | 1uF | 1u | ||
| C7 | 47nF | 47n | ||
| C3 | 1uF | 1u | ||
| C8 | 220nF | 220n | ||
| C4 | 470nF | 470n | ||
| C9 | 470nF | 470n | ||
| Diodes 1 | ||||
| D1 | 1N4001 | 1N4001 | ||
| Transistors 4 | ||||
| Q1 | 2N5088 | 2N5088 | ||
| Q4 | 2N5088 | 2N5088 | ||
| Q2 | 2N5457 | 2N5457 | ||
| Q3 | 2N5457 | 2N5457 | ||
| Potentiometers 3 | ||||
| DEPTH | B250K | B250k | Potentiometer | |
| SPEED | A100K | A100k | Potentiometer | |
| LEVEL | A100K | A100k | Potentiometer | |
Other boards based on the EA Tremolo
- Tremolololol delyk PCBs · 1590LB
- EA Trem Effects Layouts · 1590B · $6.00
- FuzzPup EA Trem Fuzz Dog · 1590A · £28.80
- Pulsar Tremolo HotKits · 1590B · $2.50
- Tremolito Moody Sounds · kr695.00
- Tremolo Moody Sounds · kr595.00
- EA Tremolo Tayda Electronics (DHEA) · $6.99
- EA Tremolo Tonepad · $8.00