This product is obsolete/discontinued and no further stocks are available. Please see alternatives in the category links above.
A mono hi-fi audio power amplifier using the TDA2030 with very good specifications despite its apparent simplicity. Two of these 1109 kits can be used together with kits 1070 and 3100 to make a modern high quality STEREO amplifier.
The circuit uses a TDA2030 audio amplifier IC to drive two TIP2955 transistors in a complimentary pair set-up. It provides high input sensitivity, low distortion, good frequency response and operating stability and full protection against overloads and output short-circuits.
A 35 - 45Vdc power supply is required. Output load is can be either 4 or 8 Ohms.
Kit includes a large heatsink and solder for assembly.
Specifications (Per Channel)| Maximum output power | 40W/4 Ohm or 32W/8 Ohm (RMS) |
| Supply voltage | 35 - 45V dc |
| Current drawn | 5A maximum |
| Quiescent current | 50mA |
| Input sensitivity | 850 mV (minimum for 40W output) |
| Distortion (THD) | 0.5 % |
| Frequency response | 40 - 15,000 Hz |
| Load impedance | 4 - 8 Ohm |
| Board Dimensions | 48x90mm |
| Overall dimensions | 60x90x65mm (with heatsink) |
| Board Connections | Solder Posts |
| Product Formats | SELF-ASSEMBLY Electronic Kit (KT) |
| Documentation | 1109 Schematic Diagram TDA2030 Datasheet (opens in new window) Amplifier Power Supply General Advice |
