| 1 Watt Audio Amplifier | 59873 |
| 125W Power Amplifier, AB Class | 30401 |
| 200-220W Amplifier - 2N3055 | 114801 |
| Audio Amplifier 100W with BDX66B, BDX67B | 77871 |
| Audio Amplifier 200-500W | 160954 |
| Audio Amplifier 90-100W with 2N3773 | 190512 |
| Audio Amplifier with LM3875 | 49872 |
| Audio Line Driver | 6955 |
| Audio Power Amplifier 100W with LM3886 | 71396 |
| Headphones Amplifier | 23083 |
| Power amplifier with TDA2030 | 80287 |
| VU Meter 12 Leds (UAA180) | 9721 |
| VU Meter 9 Leds | 56600 |
