| 1 Watt Audio Amplifier | 58491 |
| 125W Power Amplifier, AB Class | 26805 |
| 200-220W Amplifier - 2N3055 | 112772 |
| Audio Amplifier 100W with BDX66B, BDX67B | 76023 |
| Audio Amplifier 200-500W | 158514 |
| Audio Amplifier 90-100W with 2N3773 | 185813 |
| Audio Amplifier with LM3875 | 49435 |
| Audio Line Driver | 6460 |
| Audio Power Amplifier 100W with LM3886 | 70385 |
| Headphones Amplifier | 22534 |
| Power amplifier with TDA2030 | 78992 |
| VU Meter 12 Leds (UAA180) | 8846 |
| VU Meter 9 Leds | 55429 |
