7
Construction
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R9: 15K (1-5-3)
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R10: 15K (1-5-3)
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R11: 470R (4-7-1)
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R12: 15K (1-5-3)
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R13: 15K (1-5-3)
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R14: 100R (1-0-1)
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R15: 15K (1-5-3)
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R16: 2K2 0.6W (2-2-2-9)
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R17: 100R (1-0-1)
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R18: 1K (1-0-2)
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R19: 470R (4-7-1)
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R20: 2K2 0.6W (2-2-2-9)
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R21: 1M (1-0-5)
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R22: 470R (4-7-1)
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R23: 1K (1-0-2)
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R24: 470K (4-7-4)
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R25: 470K (4-7-4)
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R26: 470K (4-7-4)
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R27: 100K (1-0-4)
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R28: 2K2 0.6W (2-2-2-9)
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R29: 2K2 0.6W (2-2-2-9)
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R30: 0R (-0-)
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R31: 15K (1-5-3)
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R32: 100K (1-0-4)
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R33: 100R (1-0-1)
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R34: 0R (-0-)
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R35: 680R (6-8-1)
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R36: 15K (1-5-3)
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R37: 100K (1-0-4)
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R38: 470R (4-7-1)
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R39: 10R / 1W (1-0-0)
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JGND: 0R (-0-)
If long input signal wires are used a
low input impedance can be useful.
In this case mount for RX a 680R (6-
8-1) resistor. Check if your pre-
amplifier can drive low impedance!
Our K8021 is OK for low impedance.
Our K8020 is not suited for low im-
pedance driving.
Rx is normally left open.
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R40: 4R7 (4.7, 4R7)
7. 10W resistor
R...
5mm
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IC1: 8P
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IC2: 8P
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IC3: 6P
6. IC sockets (check the position)
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C1: 100n (104, 0.1, u1)
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C2: 100n (104, 0.1, u1)
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C3: 100n (104, 0.1, u1)
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C4: 100n (104, 0.1, u1)
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C5: 100n (104, 0.1, u1)
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C6: 100n (104, 0.1, u1)
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C7: 100n (104, 0.1, u1)
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C8: 100n (104, 0.1, u1)
5. Multilayer capacitors
c...