Enclosure not stated · 2 knobs
Schematic
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Parts list 99 rows
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Check before you build · 7 values the reader of this schematic was not sure of
- R15: label overlaps R16, read as 1M
- R28: small reversed text, could be 82K or 22K
- R30: could be 3.3K or 33K
- R35: could be 2.7K or 27K
- R38: could be 56K or 36K
- C13: value partly cut off, read 47uF
- R9: label reads 'RT 4.7K', taken as R9
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 49 | ||||
| R1 | 1K | 1k | read from the schematic by eye | |
| R2 | 470K | 470k | read from the schematic by eye | |
| R3 | 10K | 10k | read from the schematic by eye | |
| R4 | 68K | 68k | read from the schematic by eye | |
| R5 | 1.5K | 1.5k | read from the schematic by eye | |
| R6 | 470 | 470 | read from the schematic by eye | |
| R7 | 22K | 22k | read from the schematic by eye | |
| R8 | 470K | 470k | read from the schematic by eye | |
| R9 | 4.7K | 4.7k | read from the schematic by eye | |
| R10 | 100K | 100k | read from the schematic by eye | |
| R11 | 100K | 100k | read from the schematic by eye | |
| R12 | 100K | 100k | read from the schematic by eye | |
| R13 | 150K | 150k | read from the schematic by eye | |
| R14 | 330K | 330k | read from the schematic by eye | |
| R15 | 1M | 1M | read from the schematic by eye | |
| R16 | 1M | 1M | read from the schematic by eye | |
| R17 | 1M | 1M | read from the schematic by eye | |
| R18 | 1M | 1M | read from the schematic by eye | |
| R19 | 10K | 10k | read from the schematic by eye | |
| R20 | 1K | 1k | read from the schematic by eye | |
| R21 | 100K | 100k | read from the schematic by eye | |
| R22 | 4.7K | 4.7k | read from the schematic by eye | |
| R23 | 22K | 22k | read from the schematic by eye | |
| R24 | 150K | 150k | read from the schematic by eye | |
| R25 | 22K | 22k | read from the schematic by eye | |
| R26 | 1M | 1M | read from the schematic by eye | |
| R27 | 1K | 1k | read from the schematic by eye | |
| R28 | 82K | 82k | read from the schematic by eye | |
| R29 | 100K | 100k | read from the schematic by eye | |
| R30 | 3.3K | 3.3k | read from the schematic by eye | |
| R31 | 100K | 100k | read from the schematic by eye | |
| R32 | 10K | 10k | read from the schematic by eye | |
| R33 | 820 | 820 | read from the schematic by eye | |
| R34 | 27K | 27k | read from the schematic by eye | |
| R35 | 2.7K | 2.7k | read from the schematic by eye | |
| R36 | 100K | 100k | read from the schematic by eye | |
| R37 | 100K | 100k | read from the schematic by eye | |
| R38 | 56K | 56k | read from the schematic by eye | |
| R39 | 56K | 56k | read from the schematic by eye | |
| R40 | 56K | 56k | read from the schematic by eye | |
| R41 | 56K | 56k | read from the schematic by eye | |
| R42 | 1M | 1M | read from the schematic by eye | |
| R43 | 1M | 1M | read from the schematic by eye | |
| R44 | 3.3K | 3.3k | read from the schematic by eye | |
| R45 | 3.9K | 3.9k | read from the schematic by eye | |
| R46 | 1M | 1M | read from the schematic by eye | |
| R47 | 100 | 100 | read from the schematic by eye | |
| R48 | 470 | 470 | read from the schematic by eye | |
| R49 | 4.7K | 4.7k | read from the schematic by eye | |
| Capacitors 24 | ||||
| C1 | .047uF | 47n | read from the schematic by eye | |
| C2 | .47uF | 470n | 50V electrolytic; read from the schematic by eye | |
| C3 | .033uF | 33n | read from the schematic by eye | |
| C4 | .047uF | 47n | read from the schematic by eye | |
| C5 | .047uF | 47n | read from the schematic by eye | |
| C6 | .47uF | 470n | 50V electrolytic; read from the schematic by eye | |
| C7 | 10uF | 10u | 16V electrolytic; read from the schematic by eye | |
| C8 | .047uF | 47n | read from the schematic by eye | |
| C9 | 220pF | 220p | read from the schematic by eye | |
| C10 | .0022uF | 2.2n | read from the schematic by eye | |
| C11 | .047uF | 47n | read from the schematic by eye | |
| C12 | 1uF | 1u | 50V electrolytic; read from the schematic by eye | |
| C13 | 47uF | 47u | electrolytic; voltage cut off; read from the schematic by eye | |
| C14 | 1uF | 1u | 50V electrolytic; read from the schematic by eye | |
| C15 | 1uF | 1u | 35V tantalum; read from the schematic by eye | |
| C16 | 470pF | 470p | read from the schematic by eye | |
| C17 | 470pF | 470p | read from the schematic by eye | |
| C18 | 220pF | 220p | read from the schematic by eye | |
| C19 | 220pF | 220p | read from the schematic by eye | |
| C20 | .047uF | 47n | read from the schematic by eye | |
| C21 | .047uF | 47n | read from the schematic by eye | |
| C22 | .01uF | 10n | read from the schematic by eye | |
| C23 | 100uF | 100u | 16V electrolytic; read from the schematic by eye | |
| C24 | 10uF | 10u | 16V electrolytic; read from the schematic by eye | |
| Diodes 8 | ||||
| D1 | RD11EB3 | RD11EB3 | 11V zener; read from the schematic by eye | |
| D2 | RD5.1EB3 | RD5.1EB3 | 5.1V zener; read from the schematic by eye | |
| D3 | RD5.1EB3 | RD5.1EB3 | 5.1V zener; read from the schematic by eye | |
| D4 | 1S2473 | 1S2473 | read from the schematic by eye | |
| D5 | 1S2473 | 1S2473 | read from the schematic by eye | |
| D6 | 1S2473 | 1S2473 | read from the schematic by eye | |
| D7 | 1S2473 | 1S2473 | read from the schematic by eye | |
| D8 | 1S2473 | 1S2473 | read from the schematic by eye | |
| Transistors 9 | ||||
| Q1 | 2SC732TM-GR | 2SC732TM-GR | read from the schematic by eye | |
| Q2 | 2SC732TM-GR | 2SC732TM-GR | read from the schematic by eye | |
| Q3 | 2SC732TM-GR | 2SC732TM-GR | read from the schematic by eye | |
| Q4 | 2SA1015-Y | 2SA1015-Y | read from the schematic by eye | |
| Q5 | 2SA1015-Y | 2SA1015-Y | read from the schematic by eye | |
| Q6 | 2SC945-P | 2SC945-P | read from the schematic by eye | |
| Q7 | 2SC945-P | 2SC945-P | read from the schematic by eye | |
| Q8 | 2SK30ATM-Y | 2SK30ATM-Y | JFET; read from the schematic by eye | |
| Q9 | 2SK30ATM-Y | 2SK30ATM-Y | JFET; read from the schematic by eye | |
| ICs 2 | ||||
| IC1 | uPC4558C | UPC4558C | read from the schematic by eye | |
| IC2 | uPC4558C | UPC4558C | read from the schematic by eye | |
| Opto 1 | ||||
| P.C. | P873G35-380 | P873G35-380 | LED/LDR photocoupler, driven by Q5; read from the schematic by eye | |
| Inductors 1 | ||||
| 3R | 700mH | 700mH | inductor, designator 3R as drawn; read from the schematic by eye | |
| Potentiometers 2 | ||||
| Peak | A100K | A100k | Potentiometer | VR1; read from the schematic by eye |
| Sens | B50K | B50k | Potentiometer | VR2; read from the schematic by eye |
| Trimmers 1 | ||||
| VR3 | B100K | 100k | read from the schematic by eye | |
| Switches 1 | ||||
| SW2 | SPDT | SPDT | Drive up/down; read from the schematic by eye | |
| LEDs 1 | ||||
| ×1 | SLP135B | SLP135B | CHECK indicator; read from the schematic by eye | |