| 1 Watt Audio Amplifier | 60406 |
| 125W Power Amplifier, AB Class | 31862 |
| 200-220W Amplifier - 2N3055 | 115591 |
| Audio Amplifier 100W with BDX66B, BDX67B | 78423 |
| Audio Amplifier 200-500W | 161853 |
| Audio Amplifier 90-100W with 2N3773 | 191931 |
| Audio Amplifier with LM3875 | 50018 |
| Audio Line Driver | 7155 |
| Audio Power Amplifier 100W with LM3886 | 72917 |
| Headphones Amplifier | 23306 |
| Power amplifier with TDA2030 | 80782 |
| VU Meter 12 Leds (UAA180) | 10071 |
| VU Meter 9 Leds | 57172 |
