| 1 Watt Audio Amplifier | 59145 |
| 125W Power Amplifier, AB Class | 28837 |
| 200-220W Amplifier - 2N3055 | 113913 |
| Audio Amplifier 100W with BDX66B, BDX67B | 77122 |
| Audio Amplifier 200-500W | 159978 |
| Audio Amplifier 90-100W with 2N3773 | 188164 |
| Audio Amplifier with LM3875 | 49652 |
| Audio Line Driver | 6707 |
| Audio Power Amplifier 100W with LM3886 | 70888 |
| Headphones Amplifier | 22813 |
| Power amplifier with TDA2030 | 79658 |
| VU Meter 12 Leds (UAA180) | 9245 |
| VU Meter 9 Leds | 56005 |
