| 1 Watt Audio Amplifier | 62369 |
| 125W Power Amplifier, AB Class | 36536 |
| 200-220W Amplifier - 2N3055 | 117638 |
| Audio Amplifier 100W with BDX66B, BDX67B | 80283 |
| Audio Amplifier 200-500W | 164432 |
| Audio Amplifier 90-100W with 2N3773 | 196126 |
| Audio Amplifier with LM3875 | 50455 |
| Audio Line Driver | 7785 |
| Audio Power Amplifier 100W with LM3886 | 74150 |
| Headphones Amplifier | 23912 |
| Power amplifier with TDA2030 | 82220 |
| VU Meter 12 Leds (UAA180) | 11189 |
| VU Meter 9 Leds | 58609 |
