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STD Dynamic Preamp

Dynamic Preamp

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License

GPL 3.0

License: GPL 3.0

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Update time: 2024-02-11 03:00:40
Creation time: 2021-10-27 18:27:42
Description

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

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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