| 1 Watt Audio Amplifier | 65780 |
| 125W Power Amplifier, AB Class | 45649 |
| 200-220W Amplifier - 2N3055 | 121072 |
| Audio Amplifier 100W with BDX66B, BDX67B | 83845 |
| Audio Amplifier 200-500W | 169325 |
| Audio Amplifier 90-100W with 2N3773 | 206836 |
| Audio Amplifier with LM3875 | 51406 |
| Audio Line Driver | 8896 |
| Audio Power Amplifier 100W with LM3886 | 76392 |
| Headphones Amplifier | 25075 |
| Power amplifier with TDA2030 | 85081 |
| VU Meter 12 Leds (UAA180) | 13269 |
| VU Meter 9 Leds | 60702 |
