LM386 AF Amplifier Project. F&DARS January 2001. Construction Sequence. Baseboard and front panel LM386 amplifier board interconnections Power up and test. Main Layout Diagram. LM386 Board layout. LM386 Board Legend. IN = screened audio input lead connection. COMPONENTS LIST (1)
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F&DARS January 2001
IN = screened audio input lead connection
RV1 10k Log pot
C1 1 microF electrolytic, 16v
C2 100 nF ceramic
C3 10 microF electrolytic, 16v
C4 10 microF electrolytic, 16v
C5 100 nF polyester more...........
C6 100 microF electrolytic, 16v
C7 1000 microF electrolytic, 16v
C8 100nF polyester
LM386 Audio Amplifier chip
Loudspeaker: not less than 8R, dia as avail.
Switch: single pole, on-off more.........
Input socket: e.g. phono
OP Socket: e.g. min shorting jack, 3.5mm
Battery connector for PP3 type
LM386 Board supports, e.g. 4 X resistors
Hook-up wire as required
Copper clad board (various sizes - see next slide)
Knob for pot Rubber feet (4)
Thin coax, approx 3" for input connection
Copper clad board suggested dimensions
Baseboard 8" X 3.5" (200mm X 85mm)
Front Panel 3" X 2" (78mm X 51mm)
Side supports 2" X 2" (51mm X 51mm) - a single piece of this size cut in two diagonally
LM386 amp. board 2" X 2" (51mm X 51mm)
PCB islands 2 off, approx. 7mm square
PP3 battery holder - or d/sided sticky / zip ties