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STD Dynamic Preamp
License: GPL 3.0
Mode: Editors' pick
- 8
Update time：
2024-02-11 03:00:40
Creation time：
2021-10-27 18:27:42
Description
Based on zipdox's project : https://oshwlab.com/zipdox/fethead .
Phantom-powered preamplification circuit for dynamic and ribbon microphones.
Partially redesigned PCB (without connectors and in a smaller footprint) for intergration inside microphone enclosures.
Final product
This PCB design is made with PNP in mind. It would be possible to solder parts by hand, but such small footprint components make it not trivial to do so.
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | BOM_Supplier | BOM_Manufacturer | BOM_Manufacturer Part | BOM_Supplier Part |
|---|---|---|---|---|---|---|---|---|
| 1 | 1N4148 | D1,D2 | SOD-323_L1.8-W1.3-LS2.5-RD | 2 | LCSC | CJ | 1N4148WS T4 | C2128 |
| 2 | 2SK209-GR | Q1,Q2,Q3,Q4 | SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR | 4 | LCSC | TOSHIBA | 2SK209-GR(TE85L,F) | C61792 |
| 3 | 56 | R1 | R0603 | 1 | LCSC | Uniroyal Elec | 0603WAD560JT5E | C423025 |
| 4 | 22K | R2,R3 | R0603 | 2 | LCSC | Uniroyal Elec | 0603WAD2202T5E | C407616 |
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