| Component | Attributes | Description |
|---|---|---|
| Fairchild Semiconductor MMBT3904 | NPN General Purpose Amplifier | |
| Fairchild 2N3904BU | NPN General Purpose Amplifier | |
| Atmel ATmega8 | ATmega8 | |
| Fairchild Semiconductor 2N3904 | NPN General Purpose Amplifier | |
| JCST MMBT3904 | NPN General Purpose Amplifier | |
| National Semiconductor LM386 | Low Voltage Audio Power Amplifier LM386 | |
| Fairchild 2N3904BU | 2N3904BU NPN General Purpose Amplifier | |
| ON Semiconductor P2N2222AG | P2N2222AG NPN Amplifier Transistor | |
| Fairchild Semiconductor LM324N | Operational Amplifier (Op-Amp) IC | |
| National Semiconductor LM386N-3 | Low Voltage Audio Power Amplifier LM386 | |
| Texas Instruments INA217 | INA217 - Low Noise, Low Distortion Instrumentation Amplifier (DIP-8) | |
| Fairchild MMBT3906 | PNP General Purpose Amplifier | |
| Analog Devices AD633 | AD633 Analog Multiplier | |
| Texas Instruments CD74HC4067E | 16-Channel CMOS Analog Multiplexer / Demultiplexer | |
| STMicroelectronics STA540 | 2/4 Channel amplifier STA540 | |
| STMicroelectronics LM358N | Low power dual operational amplifier | |
| NJR/JRC NJM2073D | Dual Low-Voltage Power Amplifier | |
| Fairchild Semiconductor MMBT5088 | NPN General Purpose Amplifier | |
| Texas Instruments LM358P | DUAL OPERATIONAL AMPLIFIER | |
| Maxim Integrated MAX525BCPP+ | MAX525 12bit DAC with amplifier |