Ramsey Electronics BS1 Instruction Manual - page 6
BS-1
• 6
PARTS SUPPLIED WITH BS1 VOICE RECORDER KIT
Capacitors
1 .0047 µF or .005 µF disc capacitor (marked 472, .005, or 502) [C4]
1 .002 µF or .0022 µF disc capacitor (marked .002, 202 or 222) [C10]
3 .01 µF disc capacitors (marked .01, 103, or 10 nF) [C14,C16,C17]
4 .1 µF disc capacitors (marked .1, 104, or 100 nF) [C3,C5,C9,C19]
1 100 pF disc capacitor (marked 100 or 101) [C18]
1 1 µF electrolytic capacitor [C11]
8 10 µF electrolytic capacitors [C1,C2,C6,C7,C8,C13,C20,C22]
2 220 µF electrolytic capacitors [C12,C15]
1 470 µF electrolytic capacitor [C21]
Resistors
1 2 ohms (red-black-gold) [R14]
1 100 ohms (brown-black-brown) [R3]
1 470 ohms (yellow-violet-brown) [R16]
3 1K ohms (brown-black-red) [R4,R7,R15]
1 4.7K ohms (yellow-violet-red) [R6]
7 10K ohms (brown-black-orange) [R1,R8,R9,R10,R11,R13, one for the
bottom of the board]
1 15K ohms (brown-green-orange) [R5]
1 1K ohm potentiometer (marked 102) [R2]
1 PC mount 10K ohm trimmer potentiometer (marked 10K) [R12]
Semiconductors
3 1N4148 diodes (small glass diodes) [D1,D2,D3]
1 1N4002 diode (epoxy case marked 1N4004) [D4]
1 Red LED [D5]
1 Green LED [D6]
1 7805 +5 Volt voltage regulator [VR1]
1 LM358 Dual Opamp IC [U1]
1 ISD4004 Voice Recorder IC [U2]
1 LM386 Audio Amplifier IC [U3]
1 68HC705K1 Microcontroller IC (marked with white sticker) [U4]
Hardware, Misc.
3 Horizontal push-button switch [S1,S2,S3]
1 3 pin vertical header strip and jumper block [J2]
1 .5 mm center pin type power jack [J5]
3 RCA-style jacks [J1,J3,J6]
1 Subminiature speaker jack [J4]
1 16-pin socket for U4
1 28-pin socket for U2
1 MC-1 microphone cartridge [MIC1]