| 1 Watt Audio Amplifier | 62771 |
| 125W Power Amplifier, AB Class | 37316 |
| 200-220W Amplifier - 2N3055 | 118016 |
| Audio Amplifier 100W with BDX66B, BDX67B | 80695 |
| Audio Amplifier 200-500W | 164941 |
| Audio Amplifier 90-100W with 2N3773 | 196978 |
| Audio Amplifier with LM3875 | 50529 |
| Audio Line Driver | 7911 |
| Audio Power Amplifier 100W with LM3886 | 74424 |
| Headphones Amplifier | 24044 |
| Power amplifier with TDA2030 | 82492 |
| VU Meter 12 Leds (UAA180) | 11418 |
| VU Meter 9 Leds | 58871 |
