| 1 Watt Audio Amplifier | 61600 |
| 125W Power Amplifier, AB Class | 35087 |
| 200-220W Amplifier - 2N3055 | 117020 |
| Audio Amplifier 100W with BDX66B, BDX67B | 79623 |
| Audio Amplifier 200-500W | 163715 |
| Audio Amplifier 90-100W with 2N3773 | 194664 |
| Audio Amplifier with LM3875 | 50303 |
| Audio Line Driver | 7559 |
| Audio Power Amplifier 100W with LM3886 | 73793 |
| Headphones Amplifier | 23692 |
| Power amplifier with TDA2030 | 81763 |
| VU Meter 12 Leds (UAA180) | 10811 |
| VU Meter 9 Leds | 58215 |
