| 1 Watt Audio Amplifier | 55697 |
| 125W Power Amplifier, AB Class | 16148 |
| 200-220W Amplifier - 2N3055 | 107502 |
| Audio Amplifier 100W with BDX66B, BDX67B | 72615 |
| Audio Amplifier 200-500W | 150664 |
| Audio Amplifier 90-100W with 2N3773 | 172909 |
| Audio Amplifier with LM3875 | 48430 |
| Audio Line Driver | 5128 |
| Audio Power Amplifier 100W with LM3886 | 68152 |
| Headphones Amplifier | 21438 |
| Power amplifier with TDA2030 | 76101 |
| VU Meter 12 Leds (UAA180) | 7035 |
| VU Meter 9 Leds | 52890 |
