| 1 Watt Audio Amplifier | 58250 |
| 125W Power Amplifier, AB Class | 25985 |
| 200-220W Amplifier - 2N3055 | 112286 |
| Audio Amplifier 100W with BDX66B, BDX67B | 75639 |
| Audio Amplifier 200-500W | 157881 |
| Audio Amplifier 90-100W with 2N3773 | 184654 |
| Audio Amplifier with LM3875 | 49337 |
| Audio Line Driver | 6368 |
| Audio Power Amplifier 100W with LM3886 | 70207 |
| Headphones Amplifier | 22418 |
| Power amplifier with TDA2030 | 78698 |
| VU Meter 12 Leds (UAA180) | 8675 |
| VU Meter 9 Leds | 55102 |
