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STD DESCRETE power amp level meter
Mode: Editors' pick
- 1
Update time：
2018-12-08 18:57:08
Creation time：
2018-07-06 17:19:05
Description
amplifier power meter WITHOUT LM3914,15,16
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | Mounted | |
|---|---|---|---|---|---|---|
| 1 | 1N4148 | D1,D2,D3,D4,D5,D6,D7,D8,D9,D10,D11,D12,D13,D14,D15,D16,D17,D18 | DO-35 | 18 | Yes | C54037 |
| 2 | 2N3906 | Q1,Q11 | TO-92(TO-92-4) | 2 | Yes | C9809 |
| 3 | 4.7uF | C1,C2,C3,C4 | CAP-D4.0XF1.5 | 4 | Yes | |
| 4 | 4.7K | R1,R19,R22,R40 | AXIAL-0.3 | 4 | Yes | |
| 5 | 2N3904 | Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q12,Q13,Q14,Q15,Q16,Q17,Q18,Q19,Q20 | TO-92(TO-92-4) | 18 | Yes | C118538 |
| 6 | LED-3MM | LED1,LED2,LED3,LED4,LED5,LED6,LED7,LED8,LED9,LED10,LED11,LED12,LED13,LED14,LED15,LED16,LED17,LED18 | LED-3MM/2.54 | 18 | Yes | C99772 |
| 7 | 330 | R2,R4,R6,R8,R10,R12,R14,R16,R18,R23,R25,R27,R29,R31,R33,R35,R37,R39 | AXIAL-0.3 | 18 | Yes | |
| 8 | Header-Female-2.54_1x2 | P1 | HDR-1X2/2.54 | 1 | Yes | C49661 |
| 9 | 47K | R3,R5,R24,R26 | AXIAL-0.3 | 4 | Yes | |
| 10 | 39K | R7,R9,R28,R30 | AXIAL-0.3 | 4 | Yes | |
| 11 | 33K | R11,R13,R32,R34 | AXIAL-0.3 | 4 | Yes | |
| 12 | 10K | R15,R17,R36,R38 | AXIAL-0.3 | 4 | Yes | |
| 13 | Header-Male-2.54_1x3 | P2 | HDR-3X1/2.54 | 1 | Yes | C49257 |
| 14 | 470 | R20,R41 | AXIAL-0.3 | 2 | Yes | |
| 15 | 100K | R21,R42 | RES-ADJ_3362M | 2 | Yes | C125022 |
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