Enclosure not stated · 3 knobs
Korg Parametric EQ
Based on the Korg Parametric EQ
- 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 76 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 40 | ||||
| R1 | 1M | 1M | read from the schematic by eye | |
| R2 | 1M | 1M | read from the schematic by eye | |
| R3 | 1M | 1M | read from the schematic by eye | |
| R4 | 1M | 1M | read from the schematic by eye | |
| R5 | 220 | 220 | drawn 220 ohm; read from the schematic by eye | |
| R6 | 150K | 150k | read from the schematic by eye | |
| R7 | 150K | 150k | read from the schematic by eye | |
| R8 | 220 | 220 | drawn 220 ohm; read from the schematic by eye | |
| R9 | 6.8K | 6.8k | read from the schematic by eye | |
| R10 | 20K | 20k | read from the schematic by eye | |
| R11 | 100K | 100k | read from the schematic by eye | |
| R12 | 91K | 91k | read from the schematic by eye | |
| R13 | 100K | 100k | read from the schematic by eye | |
| R14 | 51K | 51k | read from the schematic by eye | |
| R15 | 1.2K | 1.2k | read from the schematic by eye | |
| R16 | 100K | 100k | read from the schematic by eye | |
| R17 | 100K | 100k | read from the schematic by eye | |
| R18 | 68K | 68k | read from the schematic by eye | |
| R19 | 3.9K | 3.9k | read from the schematic by eye | |
| R20 | 10K | 10k | read from the schematic by eye | |
| R21 | 1K | 1k | read from the schematic by eye | |
| R23 | 470K | 470k | read from the schematic by eye | |
| R24 | 20K | 20k | read from the schematic by eye | |
| R25 | 10K | 10k | read from the schematic by eye | |
| R26 | 4.7K | 4.7k | read from the schematic by eye | |
| R27 | 22K | 22k | read from the schematic by eye | |
| R28 | 1M | 1M | read from the schematic by eye | |
| R29 | 100K | 100k | read from the schematic by eye | |
| R30 | 100K | 100k | read from the schematic by eye | |
| R31 | 10K | 10k | read from the schematic by eye | |
| R32 | 33K | 33k | read from the schematic by eye | |
| R33 | 1K | 1k | read from the schematic by eye | |
| R34 | 120K | 120k | read from the schematic by eye | |
| R35 | 47K | 47k | read from the schematic by eye | |
| R36 | 2.2M | 2.2M | read from the schematic by eye | |
| R37 | 47K | 47k | read from the schematic by eye | |
| R38 | 47K | 47k | read from the schematic by eye | |
| R39 | 1.2K | 1.2k | read from the schematic by eye | |
| R40 | 1M | 1M | drawn '1M or 1.5M': selected by IC1/IC2 rank; 1.5M carbon if there is a brown point on IC1 or IC2; read from the schematic by eye | |
| R41 | 470K | 470k | read from the schematic by eye | |
| Capacitors 17 | ||||
| C1 | 22uF | 22u | 16V electrolytic; read from the schematic by eye | |
| C2 | 0.01uF | 10n | drawn 0.01; read from the schematic by eye | |
| C3 | 0.01uF | 10n | drawn 0.01; read from the schematic by eye | |
| C4 | 0.01uF | 10n | drawn 0.01; read from the schematic by eye | |
| C5 | 0.01uF | 10n | drawn 0.01; read from the schematic by eye | |
| C6 | 100uF | 100u | 16V electrolytic; read from the schematic by eye | |
| C7 | 1uF | 1u | 50V electrolytic; read from the schematic by eye | |
| C8 | 0.015uF | 15n | drawn 0.015; read from the schematic by eye | |
| C9 | 0.015uF | 15n | drawn 0.015; read from the schematic by eye | |
| C10 | 10uF | 10u | 16V electrolytic; read from the schematic by eye | |
| C11 | 0.01uF | 10n | drawn 0.01; read from the schematic by eye | |
| C12 | 0.01uF | 10n | drawn 0.01; read from the schematic by eye | |
| C13 | 0.01uF | 10n | drawn 0.01; read from the schematic by eye | |
| C14 | 10uF | 10u | 16V electrolytic; read from the schematic by eye | |
| C15 | 0.01uF | 10n | drawn 0.01; read from the schematic by eye | |
| C16 | 0.01uF | 10n | drawn 0.01; read from the schematic by eye | |
| C17 | 4.7uF | 4.7u | 25V electrolytic; read from the schematic by eye | |
| Diodes 6 | ||||
| D1 | SR1K-2 | SR1K-2 | drawn SRIK2 (Sanken SR1K-2); polarity protection; read from the schematic by eye | |
| D2 | 1S1555 | 1S1555 | read from the schematic by eye | |
| D3 | RD5.1EB2 | RD5.1EB2 | 5.1V zener; read from the schematic by eye | |
| D4 | RD5.6EB1 | RD5.6EB1 | 5.6V zener; read from the schematic by eye | |
| D5 | 1S1555 | 1S1555 | read from the schematic by eye | |
| D6 | 1S1555 | 1S1555 | fitted only for IC3 rank orange/brown, green/brown or blue/brown (note 2); read from the schematic by eye | |
| Transistors 3 | ||||
| IC1 | TX-429D | TX-429D | Korg dual-gate MOSFET used as a voltage-controlled resistor (like the MPF131), drawn as IC; read from the schematic by eye | |
| IC2 | TX-429D | TX-429D | Korg dual-gate MOSFET used as a voltage-controlled resistor (like the MPF131), drawn as IC; read from the schematic by eye | |
| IC3 | TX-429D | TX-429D | Korg dual-gate MOSFET used as a voltage-controlled resistor (like the MPF131), drawn as IC; read from the schematic by eye | |
| ICs 4 | ||||
| IC4 | NJM4558DV | NJM4558DV | dual op amp; read from the schematic by eye | |
| IC5 | NJM4558DV | NJM4558DV | dual op amp; read from the schematic by eye | |
| IC6 | NJM4558DV | NJM4558DV | dual op amp; read from the schematic by eye | |
| IC7 | NJM4558DV | NJM4558DV | dual op amp; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Gain | 100KB | B100k | Potentiometer | boost/cut; read from the schematic by eye |
| Band-Width | 100KA | A100k | Potentiometer | read from the schematic by eye |
| Frequency | 100KB | B100k | Potentiometer | read from the schematic by eye |
| Trimmers 2 | ||||
| VR1 | 100K | 100k | read from the schematic by eye | |
| VR2 | 1M | 1M | read from the schematic by eye | |
| LEDs 1 | ||||
| ×1 | PR5534S | PR5534S | indicator LED, no designator; read from the schematic by eye | |