| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | ZN425E | 8-Bit A to D D/D to A Converter |
 FERRANTI |
|
| 1 | ZN425E8 | 8-BIT D-A/A-D CONVERTER ZN425E8 8-BIT D-A/A-D CONVERTER MAY 1994 DS3005-2.0 The ZN425 is a monolithic 8-bit D-A converter containing an R-2R ladder network of diffused resistors with precision bipolar switches, and in addition a counter and a 2.5V precision voltage reference. The counter is a powerful addition which allows a precision staircase to be generated very simply by clocking the counter. FE |
 GEC Plessey |
|
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List of most widely used semiconductors
| Part Number | Function | Manufacturers | |
| 1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
 Vishay |
|
| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
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