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Std edition 5QESR
No Profile
License: TAPR Open Hardware License
Description
The 5 Transistor ESR as detailed on the EEVBlog forum.
I have created this project and made up a through hole version of the PCB as part of my Amateur Radio training / Exams.
Feel free to review / use this project. It is not my design that credit goes to Jay_Diddy_B over on the EEVBlog.
73 Paul M6KUR
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 10k | R2,R3,R13,R22 | AXIAL-0.3 | 4 |
| 2 | 3k3 | R4 | AXIAL-0.3 | 1 |
| 3 | 4k7 | R5,R7 | AXIAL-0.3 | 2 |
| 4 | 1k5 | R6,R11 | AXIAL-0.3 | 2 |
| 5 | 150 | R8 | AXIAL-0.3 | 1 |
| 6 | 3 | R10 | AXIAL-0.3 | 1 |
| 7 | 30 | R12 | AXIAL-0.3 | 1 |
| 8 | 27k | R14,R21 | AXIAL-0.3 | 2 |
| 9 | 330 | R15,R19 | AXIAL-0.3 | 2 |
| 10 | 1k2 | R17,R18 | AXIAL-0.3 | 2 |
| 11 | 33 | R16,R20 | AXIAL-0.3 | 2 |
| 12 | 1 | R24 | AXIAL-0.3 | 1 |
| 13 | BC547 | Q1,Q2,Q4,Q5 | TO-92(TO-92-3) | 4 |
| 14 | BC557 | Q3 | TO-92(TO-92-3) | 1 |
| 15 | 1n5 | C2 | RAD-0.1 | 1 |
| 16 | 1u | C3,C4 | RAD-0.1 | 2 |
| 17 | 22n | C8,C7,C5 | RAD-0.1 | 3 |
| 18 | 2u2 | C6 | RAD-0.1 | 1 |
| 19 | ES1D | D1,D2 | DO-35 | 2 |
| 20 | 1N5711W | D3,D4 | DO-35 | 2 |
| 21 | 9V DC | VIN | HDR1X2 | 1 |
| 22 | 7805 | U1 | TO220 | 1 |
| 23 | 100n | C10,C9 | RAD-0.1 | 2 |
| 24 | Meter | METER | 1X02 | 1 |
| 25 | Test Cap | DUT | 1X02 | 1 |
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