| No | Part number | Description ( Function ) | Manufacturers | |
| 10 | E88C | UHF Triode |
 Siemens |
|
| 9 | E88C | S.Q. Tube page 1 2 3 4 5 6 7 E88C sheet 1 2 3 4 5 6 FP date 1968.12 1968.12 1968.12 1968.12 1968.12 1968.12 2000.11.19 |
 Philips |
|
| 8 | E88C | Special Quality Triode page 1 2 3 4 5 E88C sheet 1 2 A B FP date 1962.07.07 1962.07.07 1962.07.07 1962.07.07 1999.06.11 |
Philips |
|
| 7 | E88CC | Trioda |
 ETC |
|
| 6 | E88CC | Doppeltriode |
Siemens |
|
| 5 | E88CC | High Gain Twin Triode |
 AEG |
|
[1] [2]
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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