| 1 Watt Audio Amplifier | 67243 |
| 125W Power Amplifier, AB Class | 48580 |
| 200-220W Amplifier - 2N3055 | 122581 |
| Audio Amplifier 100W with BDX66B, BDX67B | 85666 |
| Audio Amplifier 200-500W | 171347 |
| Audio Amplifier 90-100W with 2N3773 | 210584 |
| Audio Amplifier with LM3875 | 51957 |
| Audio Line Driver | 9448 |
| Audio Power Amplifier 100W with LM3886 | 77438 |
| Headphones Amplifier | 25758 |
| Power amplifier with TDA2030 | 86488 |
| VU Meter 12 Leds (UAA180) | 14169 |
| VU Meter 9 Leds | 61815 |
