Product description
DIY soldering kit with a one-channel (mono) audio amplifier with 1W power. The kit contains everything needed for this simple and easy amplifier, and is based on the LM4861 amp chip.
The kit is suitable for classroom use, workshops or anyone wanting to learn to solder. When assembled, the amplifier is a fun and simple home-made portable sound system, a way of ampliying alerts and warnings in various equipment, or a handy device for all kinds of creative projects in audio.
The amplifier itself runs on +2.5 to +5V, which gives a lot of flexibility. Differential speaker outputs eliminate the need of large output coupling capacitors, which saves a lot of space.
Several connectors are included, which can be combined in various ways. The audio signal can be input with a regular 3.5mm (mini jack) plug, from e.g. mobile phones, media players and computers. Solder-free quick connections are provided via pin headers and/or 3.5mm screw terminals.
The pin header can be mounted facing down, which gives a breadboard-friendly amplifier (also compatible with prototyping boards). If mounted upwards, it can instead be used with e.g. Arduino Unos in the classic way, with male-female patch cables.
The board has four mountings holes (M2.5) for mounting the amplifier e.g. onto device chassis, behind furniture or onto other PCBs/prototyping boards. The PCB also has a footprint for a regular 16mm potentiometer (not included).
