| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | L905 | Line Filament Lamps D 9+/-.5 L 3.5 MAX 20 MIN MOL Line Filament Lamps Line No. 11 12 13 14 Part No. L9050 L9001 L9013 L9014 Volts 3.0 4.5 6.0 12.0 Amps 0.360 0.360 0.370 0.370 Watts 1.10 1.65 2.22 4.45 Life Hours 2,000 2,000 1,500 1,500 Vacuum Or Gas V V V V Filament Type S-8 S-8 S-8 S-8 Filament Length, L 16±1 23±1 30±1 60±1 MOL 36 43 50 77 Drawing D D D D E Line Filament Lamps Line N |
 Gilway Technical Lamp |
|
| 1 | L9050 | Line Filament Lamps D 9+/-.5 L 3.5 MAX 20 MIN MOL Line Filament Lamps Line No. 11 12 13 14 Part No. L9050 L9001 L9013 L9014 Volts 3.0 4.5 6.0 12.0 Amps 0.360 0.360 0.370 0.370 Watts 1.10 1.65 2.22 4.45 Life Hours 2,000 2,000 1,500 1,500 Vacuum Or Gas V V V V Filament Type S-8 S-8 S-8 S-8 Filament Length, L 16±1 23±1 30±1 60±1 MOL 36 43 50 77 Drawing D D D D E Line Filament Lamps Line N |
Gilway Technical Lamp |
|
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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