| 1 Watt Audio Amplifier | 57836 |
| 125W Power Amplifier, AB Class | 24404 |
| 200-220W Amplifier - 2N3055 | 111576 |
| Audio Amplifier 100W with BDX66B, BDX67B | 75110 |
| Audio Amplifier 200-500W | 156824 |
| Audio Amplifier 90-100W with 2N3773 | 182934 |
| Audio Amplifier with LM3875 | 49204 |
| Audio Line Driver | 6202 |
| Audio Power Amplifier 100W with LM3886 | 69913 |
| Headphones Amplifier | 22285 |
| Power amplifier with TDA2030 | 78293 |
| VU Meter 12 Leds (UAA180) | 8405 |
| VU Meter 9 Leds | 54762 |
