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3 bit adder using transistors

9 months ago 63
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Description

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3-bit adder schematic

3 bit adder using transistors pcb

BOM

ID Name Designator Footprint Quantity
1 1k R22,R20,R21,R19,R35,R36,R23,R24,R13,R9,R10,R7,R15,R16,R33,R29,R30,R27,R37,R38,R25,R26,R14,R11,R12,R8,R17,R18,R34,R31,R32,R28,R39,R40 AXIAL-0.3 34
2 2N3904 Q22,Q29,Q30,Q20,Q21,Q19,Q43,Q45,Q44,Q25,Q26,Q23,Q7,Q9,Q10,Q3,Q4,Q1,Q13,Q17,Q15,Q37,Q39,Q40,Q33,Q34,Q31,Q46,Q50,Q48,Q27,Q28,Q24,Q8,Q11,Q12,Q5,Q6,Q2,Q14,Q18,Q16,Q38,Q41,Q42,Q35,Q36,Q32,Q47,Q51,Q49 TO-92(TO-92-3) 51
3 SPDT X0 SW5 CONN_3P 1
4 SPDT Y0 SW6 CONN_3P 1
5 SPDT X1 SW1 CONN_3P 1
6 SPDT Y1 SW3 CONN_3P 1
7 SPDT X2 SW2 CONN_3P 1
8 SPDT Y2 SW4 CONN_3P 1
9 120R R2,R1,R3,R4,R5,R6 AXIAL-0.3 6
10 CONN_POWER P1 HDR-2X1/2.54 1
11 LED4 SMD_CONNECTOR 1
12 LED3 SMD_CONNECTOR 1
13 LED2 SMD_CONNECTOR 1
14 2⁰ LED1 SMD_CONNECTOR 1

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