Enclosure not stated · 3 knobs
Boss CE-2B
Based on the Boss CE-2B
- Category
- Vibrato / Chorus
- Build
- Vero· 22×32· 45 cuts, 22 links
- Layout
- Unverified · no build reported at Tagboard Effects yet
- Tags
- Bass, Boss, Chorus
From the post
And I may as well add this one as a separate layout so we know what versions the comments are based on. This changes a cap value and adds an Effect Level pot to the CE-2. If you want to add an Effect Level pot to the guitar CE-2, just use this layout and swap the 12n cap to the left of Q3 for a 33n. Or if you want the option of using both, use a DPDT on/on toggle like this:
1---4
2---5
3---6
Solder a 12n between 1 and 4, solder a 33n between 3 and 6, and connect wires 2 and 5 to the holes that the 12n should have connected to on the board.
This obviously isn't yet verified but it's so close to the guitar version that it will be good to go.
The BOSS Bass Chorus CE-2B is designed specially for a bass guitar, giving you the best result when used with a bass guitar.
The Rate, Depth and the Effect Level knobs serve to create various chorus effects.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 50 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- 47p ceramic right of IC4: small print, could be 47p or 4?p
- 10K at the far right edge beside the upper 8n2: partly cut by the neighbouring part, read as 10K
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| ×13 | 10K | 10k | read from the layout by eye | |
| ×6 | 47K | 47k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×4 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 470R | 470 | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×1 | 33R | 33 | read from the layout by eye | |
| ×1 | 2K7 | 2.7k | read from the layout by eye | |
| ×1 | 56K | 56k | read from the layout by eye | |
| ×1 | 150K | 150k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| Capacitors 15 | ||||
| ×1 | 47n | 47n | read from the layout by eye | |
| ×1 | 470n | 470n | read from the layout by eye | |
| ×3 | 100p | 100p | read from the layout by eye | |
| ×2 | 6n8 | 6.8n | read from the layout by eye | |
| ×2 | 33n | 33n | read from the layout by eye | |
| ×2 | 1u | 1u | read from the layout by eye | |
| ×2 | 3n3 | 3.3n | read from the layout by eye | |
| ×1 | 12n | 12n | read from the layout by eye | |
| ×2 | 470p | 470p | read from the layout by eye | |
| ×2 | 8n2 | 8.2n | read from the layout by eye | |
| ×1 | 47p | 47p | read from the layout by eye | |
| ×1 | 100n | 100n | read from the layout by eye | |
| ×1 | 10n | 10n | read from the layout by eye | |
| ×1 | 220u | 220u | electrolytic; read from the layout by eye | |
| ×1 | 47u | 47u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 1S1588 | 1S1588 | read from the layout by eye | |
| D2 | 1S1588 | 1S1588 | read from the layout by eye | |
| D3 | 12V zener | 12V | read from the layout by eye | |
| Transistors 5 | ||||
| Q1 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q2 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q3 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q4 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q5 | 2N5088 | 2N5088 | read from the layout by eye | |
| ICs 4 | ||||
| IC1 | JRC4558 | JRC4558 | read from the layout by eye | |
| IC2 | TL022 | TL022 | read from the layout by eye | |
| IC3 | MN3007 | MN3007 | BBD; read from the layout by eye | |
| IC4 | MN3101 | MN3101 | BBD clock; read from the layout by eye | |
| Potentiometers 3 | ||||
| Depth | B100K | B100k | Potentiometer | read from the layout by eye |
| Rate | B100K | B100k | Potentiometer | read from the layout by eye |
| Effect Level | C250K | C250k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 10K | 10k | read from the layout by eye | |
| Switches 2 | ||||
| Vibe | SPST | SPST | read from the layout by eye | |
| Intensity | SPST | SPST | read from the layout by eye | |
| LEDs 1 | ||||
| LED | high brightness | HIGH BRIGHTNESS | off-board, on the LED+ wire; read from the layout by eye | |