| 1 Watt Audio Amplifier | 55153 |
| 125W Power Amplifier, AB Class | 14099 |
| 200-220W Amplifier - 2N3055 | 106776 |
| Audio Amplifier 100W with BDX66B, BDX67B | 72306 |
| Audio Amplifier 200-500W | 149378 |
| Audio Amplifier 90-100W with 2N3773 | 170889 |
| Audio Amplifier with LM3875 | 48279 |
| Audio Line Driver | 4920 |
| Audio Power Amplifier 100W with LM3886 | 67839 |
| Headphones Amplifier | 21246 |
| Power amplifier with TDA2030 | 75705 |
| VU Meter 12 Leds (UAA180) | 6781 |
| VU Meter 9 Leds | 52630 |
