Enclosure not stated · 3 knobs
Stereo Frequency Splitting Effect
- Category
- EQ / Filter· Tone Control and EQs
- Price
- see vendor
- Tags
- Tone Control and EQs
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 26 rows
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Check before you build · 2 values the reader of this schematic was not sure of
- 15uF ×3 and 30uF: drawn µf but used as op amp feedback/compensation, likely pF
- 0.1uF count: 12 in the six phase stages plus 6 decoupling assumes the 3 undrawn stages match the drawn ones
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×1 | 150Ω | 150 | output build-out, drawn 150Ω (×2 total); read from the schematic by eye | |
| ×19 | 10K | 10k | 1 input-buffer feedback + 3 per phase stage × 6 stages; read from the schematic by eye | |
| ×7 | 1K | 1k | 1 per phase stage × 6, plus 1 in LFO; read from the schematic by eye | |
| ×1 | 1.5K | 1.5k | 1/2W, LED dropper in power supply; read from the schematic by eye | |
| ×3 | 33K | 33k | 1 input, 2 LFO offset trim; read from the schematic by eye | |
| ×5 | 47K | 47k | 4 output mixers, 1 LFO; read from the schematic by eye | |
| ×13 | 100K | 100k | 2 per phase stage × 6, plus 1 manual-sweep feed; read from the schematic by eye | |
| ×4 | 150K | 150k | 3 output mixers, 1 LFO integrator; read from the schematic by eye | |
| ×1 | 330Ω | 330 | below Rate pot; read from the schematic by eye | |
| Capacitors 5 | ||||
| ×3 | 15uF | 15u | drawn '15µf' across op amp feedback; almost certainly 15pF; read from the schematic by eye | |
| ×1 | 30uF | 30u | drawn '30µf' on 5534 compensation pins 1-8; almost certainly 30pF; read from the schematic by eye | |
| ×18 | 0.1uF | 100n | drawn '.1'; 2 per phase stage × 6, plus 6 supply decoupling discs; read from the schematic by eye | |
| ×1 | 10uF | 10u | drawn '10 NP', non-polar, LFO integrator; read from the schematic by eye | |
| ×2 | 1000uF | 1m | 25V electrolytic, supply filter; read from the schematic by eye | |
| Diodes 1 | ||||
| ×1 | Bridge rectifier | BRIDGE RECTIFIER | full-wave bridge, no part number given; read from the schematic by eye | |
| Transistors 1 | ||||
| ×6 | 2N5457 | 2N5457 | N-channel JFET, one per phase stage (3 drawn plus '3 more identical stages'); read from the schematic by eye | |
| ICs 3 | ||||
| ×1 | 5534 | 5534 | NE5534 input buffer; read from the schematic by eye | |
| ×2 | TL074 | TL074 | quad op amp: 6 phase stages + 2 output mixers; read from the schematic by eye | |
| ×1 | 1458 | 1458 | dual op amp LFO; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Depth | B10K | B10k | Potentiometer | 10K LIN; read from the schematic by eye |
| Rate | A10K | A10k | Potentiometer | 10K LOG; read from the schematic by eye |
| Manual | B10K | B10k | Potentiometer | 10K LIN; read from the schematic by eye |
| Trimmers 1 | ||||
| ×1 | 10K | 10k | LFO offset trim; read from the schematic by eye | |
| Switches 2 | ||||
| ×1 | SPDT | SPDT | Auto/Man sweep select; read from the schematic by eye | |
| ×1 | SPST | SPST | mains power switch; read from the schematic by eye | |
| LEDs 1 | ||||
| ×1 | LED | LED | power indicator; read from the schematic by eye | |