PARTS LIST R1,R4 15K 5% 1/4W R2,R5 33K 5% 1/4W R3,R6 1K 5% 1/4W R7 ,R11 100K 5% 1/4W R8,R13 4.7K 5% 1/4W R9,R10 47K 5% 1/4W R12 100 5% 1/W R14 1M 5% 1/4W R15 2.2K 5% 1/4W R16 5K audio taper pot C1,C7 100 nF 50V ±10% C4,C9 10 nF 50V ±10% C3,C10,C13 1 nF 50V ±10% C2 56 pF 100V ±20% C8 470 pF 100V ±20% C5,C11,C14-15 10 µF 50V ±20% C12 1 µF 50V ±20% C6 15-150 pF variable cap L1 See text L2 100 µH ±5% Q1-Q4 2N3904 transistor J1 RCA jack J2 3.5 mm phone jack S1 SPST switch Aluminum sheet K&S Metals Wood slats Forster 6-Count Slats PVC pipe 6’ 7/8” OD PVC Pipe Audio cable 6 ft cable Case 6 x 4 x 2 Battery snap 9V snap (2) Earpiece Ceramic earphone PCB Prototype board Battery holder 9V holder (2) Tape Two-sided adhesive tape Batteries 2 x 9 VDC
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