Main board BOM
| # | Designator | Value | Quantity | Supplier | Part Number | Comment |
|---|---|---|---|---|---|---|
| Capacitors, film | ||||||
| C25*, C50 | 0.1uF/63V | 2 | Mouser | MKS2.1/63/5 | * - optional, for 3124 mod | |
| C52, C8*, C9* | 0.47uF/63V | 3 | Mouser | MKS2C034701C00JO00 | * - optional, for servo circuit | |
| Capacitors, ceramic | ||||||
| C1 | 220pF | 1 | Mouser | C324C221J1G5TA | ||
| C18*, C19*, C23**, C24**, Cp2, Cp6, Cp11, Cp12** | 0.1uF | 6 | Mouser | K104K15X7RF53L2 |
* - optional, for monolithic op-amp ** - optional, for servo circuit |
|
| C20, C21, C22 | 470pF | 3 | Mouser | 1C10C0G471J050B | ||
| C53 | 0.01uF | 1 | Mouser | FG18C0G1H103JNT06 | ||
| C6 | 120pF | 1 | Mouser | C315C121J1G5TA | ||
| C7* | 100pF | 1 | Mouser | C324C101J1G5TA | * - optional, for monolithic op-amp | |
| Capacitors, electrolytic (Low ESR recommended) | ||||||
| C101 | 18uF/50V | 1 | Mouser | UPW1H180MDD | ||
| C102 | 10uF/50V | 1 | Mouser | UPW1H100MDD | ||
| C3, C26* | 470uF/35V | 2 | Mouser | UEP1V471MHD |
Non polar * - optional, for 3124 mod |
|
| C4, C5, Cp3, Cp4, Cp7, Cp8* | 22uF/35V | 6 | Mouser | UPW1V220MDD | * - optional, for servo circuit | |
| Cp1, Cp5 | 1000uF/50V | 2 | Mouser | UPW1H102MHD1CV | Low profile, <30mm | |
| Cp9, Cp10 | 100uF/63V | 2 | Mouser | UPW1J101MPD6 | ||
| Resistors (1% recommended, except where noted) | ||||||
| R1 | 9.76K | 1 | Mouser | 271-9.76K-RC | ||
| R100, R101 | 750 | 2 | Mouser | 271-750-RC | ||
| R102 | 160 | 1 | Mouser | 271-160-RC | ||
| R103 | 5.1K | 2 | Mouser | 271-5.1K-RC | ||
| R11, R12, R13, R14, R108 | 820 | 5 | Mouser | 271-820-RC | ||
| R3 | 200 | 1 | Mouser | 271-200-RC | ||
| R36, R37 | 6.81K | 2 | Mouser | RC55LF-D-6K81-B-B |
|
|
| R4, R104 | 20K | 2 | Mouser | 271-20K-RC | ||
| R5*, R57, Rp8 | 100K | 3 | Mouser | 271-100K-RC | * - optional, for servo circuit | |
| R51 | 2M | 1 | Mouser | 271-2.0M-RC | ||
| R52 | 3.6M | 1 | Mouser | MFR50SFTE52-3M6 | ||
| R53 | 4.7M | 1 | Mouser | MFR50SFTE52-4M7 | ||
| R54 | 680 | 1 | Mouser | 271-680-RC | ||
| R55 | 1.2K | 1 | Mouser | 271-1.2K-RC | ||
| R6*, R7* | 1M | 2 | Mouser | 271-1.0M-RC | * - optional, for servo circuit | |
| R8* | 47 | 1 | Mouser | 271-47-RC | * - optional, for 3124 mod | |
| R9*, R56 | 100 | 2 | Mouser | 271-100-RC | * - optional, for monolithic op-amp | |
| RG1 | 15.8K | 1 | Mouser | 271-15.8K-RC | ||
| RG10 | 205 | 1 | Mouser | 271-205-RC | ||
| RG11 | 86.6 | 1 | Mouser | 271-86.6-RC | ||
| RG2 | 9.09K | 1 | Mouser | 271-9.09K-RC | ||
| RG3 | 5.49K | 1 | Mouser | 271-5.49K-RC | ||
| RG4 | 3.57K | 1 | Mouser | 271-3.57K-RC | ||
| RG5 | 2.32K | 1 | Mouser | 271-2.32K-RC | ||
| RG6 | 1.5K | 1 | Mouser | 271-1.5K-RC | ||
| RG7 | 976 | 1 | Mouser | 271-976-RC | ||
| RG8 | 619 | 1 | Mouser | 271-619-RC | ||
| RG9 | 374 | 1 | Mouser | 271-374-RC | ||
| R15, Rp2, Rp6 | 330 | 3 | Mouser | 271-330-RC | ||
| Rp3, Rp5 | 4.42K | 2 | Mouser | 271-4.42K-RC | ||
| Rp9 | 10K | 1 | Mouser | 271-10K-RC | ||
| Ropt* | 22K | 1 | Mouser | 271-22K-RC | * - optional, 22K to 150K. Sets HF responce | |
| Potentiometers | ||||||
| TRIM | 600R T-Pad | 1 | CAPI | Bourns-51-t-pad | ||
| Semiconductors | ||||||
| D101 | 1N749A | 1 | Mouser | |||
| D11, D12, D13, D14, D102, Dp1, Dp2, Dp3, Dp4, Dp5, Dp6 | 1N4007G | 11 | Mouser | 1N4007G | ||
| D50, D103 | 1N914 | 2 | Mouser | 1N914 | ||
| PWR ON | Power On LED | 1 | Mouser | W23GD | Or any other 2mm green LED | |
| Q3 | LM317LZ | 1 | Mouser | LM317LZ | ||
| Q100 | BC550C | 1 | Mouser | BC550C | ||
| Q50 | 2N4393 | 1 | Mouser |
2N4393 or MMBF4393 |
||
| Q51 | 2N4126 | 1 | Mouser | 2N4126 | ||
| Qp1 | MPSA06 | 1 | Mouser | MPSA06 | ||
| Qp2 | MPSA56 | 1 | Mouser | MPSA56 | ||
| U1 | 2520 | 1 | 2520 | Any DOA of your choice or see separate BOM | ||
| U2_* | AD797 | 1 | Mouser | AD797ANZ | * - optional, for monolithic op-amp | |
| U3* | LT1013DIP | 1 | Mouser | LT1013DIP | * - optional, for servo circuit | |
| Up1 | LM317T | 1 | Mouser | LM317T | ||
| Up2 | LM337T | 1 | Mouser | LM337T | ||
| Up3 | LM78L12 | 1 | Mouser | LM78L12ACZ/NOPB | ||
| Up4* | LM79L12 | 1 | Mouser | LM79L12ACZ/NOPB | * - optional, for servo circuit | |
| Switches and relays | ||||||
| K1, K2, K3, K4, K5 | Relay, DPDT | 5 | Mouser | TQ2-24V |
Alternative variant: (adjust R11-R14, R108 to 1.6K!) |
|
| PHANTOM | SPDT | 1 | Mouser | 108-1MS1T1B1M1QE-EVX | ||
| 3to1, IMPEDANCE, PAD, PHASE | DPDT | 4 | Mouser | TL2201EEZA | ||
| GAIN_SW | 1 | Mouser | 56DP30-01-1-AJN | Stopped to 12 pos | ||
| Heatsinks | ||||||
| TO-220 heatsink, vertical | 2 | Mouser | 637-10ABPE | |||
| Connectors | ||||||
| Line input | XLR, Female | 1 | Mouser | NC3FD-LX-B | Or any other Neutrik Series D/DL/DLX female XLR | |
| Line output | XLR, Male | 1 | Mouser | NC3MD-LX-B | Or any other Neutrik Series D/DL/DLX male XLR | |
| GAIN, IN, OUT, 48VDC, 48VDC|| | Header | 5 | Mouser | 22-23-2021 | ||
| Wire housing | 5 | Mouser | 22-01-2027 | |||
| 24VDC, 24VDC||, FROM_GAIN | Header | 3 | Mouser | 22-23-2031 | ||
| Wire housing | 3 | Mouser | 22-01-2037 | |||
| _DI, _TRIM | Header | 2 | Mouser | 22-23-2041 | ||
| Wire housing | 2 | Mouser | 22-01-2047 | |||
| DI, TRIM | Header | 2 | Mouser | 22-23-2051 | ||
| Wire housing | 2 | Mouser | 22-01-2057 | |||
| Crinp pins | 37 | Mouser | 08-50-0032 | |||
| _FP, FP | Header | 2 | Mouser | 30310-6002HB | ||
| IDC socket | 2 | Mouser | 164-9006-E | |||
| _DI_IN | 1/4" JACK | 1 | Mouser | NJ6FD-V | ||
| Op amp socket | 6 | Mouser | 0322-0-15-15-34-27-10-0 | |||
| Transformers | ||||||
| T1 (Input) | 2622 | 1 | CAPI | CA2622 | ||
| T2 (Output) | 2320 | 1 | CAPI or Cinemag |
EA2503, 2503-Litz or CMOQ-2 |
Choose CMOQ-2L or CMOQ-2R according to your preferences. |
|
| Knobs and switch caps | ||||||
| For 1/8" shaft | 1 | Mouser | MPKES60B1/8 | Or any other knob with a single set screw | ||
| For 1/4" shaft | 1 | Mouser | MPKES60B1/4 | Or any other knob | ||
| Switch caps | 4 | Mouser | 1RLGR | |||
| Other | ||||||
| Flat cable | 1 ft | Mouser | 3365/10-CUT-LENGTH | |||
| Standoff, unthreaded, nylon, M3 clearance x 3mm (front panel and output transformer spacers) | 6 | Mouser | R30-6700394 | |||
| Standoff, M3 x 10mm, F/F (for front controls bracket mounting) | 4 | Mouser | R30-1001002 | |||
| Standoff, M3 x 5mm, F/F (for module board mounting) | 4 | Mouser | R30-1000502 | May be replaced with threaded rivets | ||
|
|
312 Module PCBs set | 1 | RackNeve | 312PCB | ||
| 312 Module front panel | 1 | RackNeve | 312FP | |||
Discrete op-amp BOM
| # | Designator | Value | Quantity | Supplier | Part Number | Comment |
|---|---|---|---|---|---|---|
| Capacitors, ceramic | ||||||
| C10d, C11d | 0.1uF | 2 | Mouser | K104K15X7RF53L2 |
|
|
| C1d | 1000pF | 1 | Mouser | C315C102J5G5TA | ||
| C2d, C3d | 47pF | 2 | Mouser | C315C470J5G5TA | ||
| C4d | 39pF | 1 | Mouser | C315C390J5G5TA | ||
| C5d | 10pF | 1 | Mouser | C315C100J5G5TA | ||
| Resistors (1% recommended, except where noted) | ||||||
| R10d | 806 | 1 | Mouser | 271-806-RC | ||
| R11d, R12d | 5R6, 0.5W | 2 | Mouser | MFR50SFTE52-5R6 | ||
| R16d | 47K | 1 | Mouser | 271-47K-RC | ||
| R1d | 150K | 1 | Mouser | 271-150K-RC | ||
| R2d | 360 | 1 | Mouser | 271-360-RC | ||
| R3d, R4d | 20K | 2 | Mouser | 271-20K-RC | ||
| R6d | 3.3K | 1 | Mouser | 271-3.3K-RC |
|
|
| R7d | 3.9K | 1 | Mouser | 271-3.9K-RC | ||
| R8d, R14d, R15d | 1K | 3 | Mouser | 271-1K-RC | ||
| R9d, R13d | 56 | 2 | Mouser | 271-56-RC | ||
| Semiconductors | ||||||
| D1d, D2d, D3d, D4d | 1N914 | 4 | Mouser | 1N914 | ||
| Q1d, Q2d | BC550C | 2 | Mouser | BC550C | Matched hfe pair | |
| Q3d, Q4d, Q5d | BC850C | 3 | Mouser | BC850CMTF | SOT-23-3 | |
| Q6d, Q9d | BC860C | 2 | Mouser | BC860BMTF | SOT-23-3 | |
| Q7d | BD139 | 1 | Mouser | BD13916S | ||
| Q8d | BD140 | 1 | Mouser | BD14016S | ||
| Connectors | ||||||
| Op amp pin | 6 | Mouser | 3103-2-00-21-00-00-08-0 | |||
| Other | ||||||
| Diode thermal clamps set | C-201 | 1 | RackNeve | WC201 | 1 set or 2 pieces | |