Enclosure not stated · 4 knobs
DOD FX67 Dual Turbo Chorus
Based on the DOD FX67 Dual Turbo Chorus
- Category
- Vibrato / Chorus· Chorus
- Controls
- Speed-A · Speed-B · Depth-B · Depth-A
- Price
- see vendor
- Tags
- Chorus
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 54 rows
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Check before you build · 2 values the reader of this schematic was not sure of
- ×2 51: value printed as '51' with no unit, probably ohms
- P1: taken as an internal bias trimmer
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 18 | ||||
| R34 | 1M | 1M | read from the schematic by eye | |
| R35 | 1M | 1M | read from the schematic by eye | |
| R36 | 100K | 100k | read from the schematic by eye | |
| R39 | 100K | 100k | read from the schematic by eye | |
| R40 | 100K | 100k | read from the schematic by eye | |
| R47 | 1M | 1M | read from the schematic by eye | |
| R50 | 10K | 10k | LED resistor; read from the schematic by eye | |
| ×2 | 51 | 51 | BBD V+ feed resistors, drawn R?; no unit given; read from the schematic by eye | |
| ×2 | 4.7K | 4.7k | output series, drawn R?; read from the schematic by eye | |
| ×10 | 10K | 10k | drawn R?; read from the schematic by eye | |
| ×1 | 18K | 18k | bias divider, drawn R?; read from the schematic by eye | |
| ×3 | 22K | 22k | drawn R?; read from the schematic by eye | |
| ×8 | 33K | 33k | drawn R?; read from the schematic by eye | |
| ×8 | 47K | 47k | drawn R?; read from the schematic by eye | |
| ×12 | 100K | 100k | drawn R?; read from the schematic by eye | |
| ×1 | 150K | 150k | drawn R?; read from the schematic by eye | |
| ×8 | 330K | 330k | drawn R?; read from the schematic by eye | |
| ×3 | 470K | 470k | drawn R?; read from the schematic by eye | |
| Capacitors 14 | ||||
| C3 | 10uF | 10u | electrolytic; read from the schematic by eye | |
| C21 | .047uF | 47n | read from the schematic by eye | |
| ×1 | 0.01uF | 10n | input coupling, drawn C?; read from the schematic by eye | |
| ×2 | 120pF | 120p | drawn C?; read from the schematic by eye | |
| ×2 | 820pF | 820p | drawn C?; read from the schematic by eye | |
| ×2 | .0012uF | 1.2n | BBD input filter, drawn C? (.0012); read from the schematic by eye | |
| ×2 | 25pF | 25p | MN3101 oscillator, drawn C?; read from the schematic by eye | |
| ×2 | .0022uF | 2.2n | drawn C?; read from the schematic by eye | |
| ×3 | .0068uF | 6.8n | drawn C?; read from the schematic by eye | |
| ×2 | .047uF | 47n | drawn C?; read from the schematic by eye | |
| ×1 | 0.56uF | 560n | LFO, drawn C?; read from the schematic by eye | |
| ×6 | 1uF | 1u | electrolytic, drawn C?; read from the schematic by eye | |
| ×2 | 4.7uF | 4.7u | LFO timing electrolytics, drawn C?; read from the schematic by eye | |
| ×1 | 47uF | 47u | bias filter electrolytic, drawn C?; read from the schematic by eye | |
| Diodes 1 | ||||
| ×4 | 1N4148 | 1N4148 | drawn D?; read from the schematic by eye | |
| Transistors 6 | ||||
| Q1 | 2N5088 | 2N5088 | read from the schematic by eye | |
| Q2 | J113 | J113 | read from the schematic by eye | |
| Q3 | J113 | J113 | read from the schematic by eye | |
| Q4 | J113 | J113 | power switch; Q4 is printed twice (clash); read from the schematic by eye | |
| Q4 | 2N5088 | 2N5088 | second Q4, LED driver in the footswitch section; read from the schematic by eye | |
| Q5 | 2N4124 | 2N4124 | read from the schematic by eye | |
| ICs 9 | ||||
| U1 | LM1458 | LM1458 | dual op amp (U1A, U1B); read from the schematic by eye | |
| U2 | LM1458 | LM1458 | dual op amp (U2A, U2B); read from the schematic by eye | |
| U3 | MN3007 | MN3007 | BBD; read from the schematic by eye | |
| U4 | MN3101 | MN3101 | BBD clock; read from the schematic by eye | |
| U5 | MN3007 | MN3007 | BBD; read from the schematic by eye | |
| U6 | MN3101 | MN3101 | BBD clock; read from the schematic by eye | |
| U7 | LM324 | LM324 | quad op amp LFO (U7A-D); read from the schematic by eye | |
| U8 | CD4007 | CD4007 | bypass logic; read from the schematic by eye | |
| U9 | LM1458 | LM1458 | dual op amp (U9A, U9B); read from the schematic by eye | |
| Potentiometers 4 | ||||
| Speed-A | 100K | 100k | Potentiometer | P2; read from the schematic by eye |
| Speed-B | 100K | 100k | Potentiometer | P3; P3 is printed twice (clash with Depth-B); read from the schematic by eye |
| Depth-B | 500K | 500k | Potentiometer | second P3; read from the schematic by eye |
| Depth-A | 500K | 500k | Potentiometer | P5; read from the schematic by eye |
| Trimmers 1 | ||||
| P1 | 50K | 50k | BBD bias, VCC to ground, no knob name; read from the schematic by eye | |
| LEDs 1 | ||||
| D6 | LED | LED | read from the schematic by eye | |