| 1 Watt Audio Amplifier | 57426 |
| 125W Power Amplifier, AB Class | 23165 |
| 200-220W Amplifier - 2N3055 | 110946 |
| Audio Amplifier 100W with BDX66B, BDX67B | 74635 |
| Audio Amplifier 200-500W | 155966 |
| Audio Amplifier 90-100W with 2N3773 | 181473 |
| Audio Amplifier with LM3875 | 49080 |
| Audio Line Driver | 6015 |
| Audio Power Amplifier 100W with LM3886 | 69635 |
| Headphones Amplifier | 22132 |
| Power amplifier with TDA2030 | 77927 |
| VU Meter 12 Leds (UAA180) | 8203 |
| VU Meter 9 Leds | 54444 |
