- Power and regulation: uses a 78L05 voltage regulator. Ideal input voltage 8-9V with typical current around 200 mA. A 12V input is allowed only for short-term testing, as prolonged use will cause heating. - Frequency control: continuous adjustment from 0 to 55 MHz in 1 Hz increments for precise tuning and repeatable results. - Connectivity and compatibility: connect 5p/6p per the accompanying photo. The encoder with 7p in the middle connects to the digital matrix input. The 14P connector (8V GND) supplies the 8V power from the motherboard. Designed to work with standard board power and signal layouts as shown. - Benefits and performance: provides a stable, adjustable MHz source powered from a common 8-9V supply. Simple integration with existing hardware via clearly defined connectors. Suitable for low-power bench use and precise frequency generation in a compact board. - Use scenarios: - RF circuit testing and alignment: generate a precise 0-55 MHz signal with 1 Hz resolution to tune filters, mixers, and amplifiers. - Embedded/project development: inject adjustable MHz signals into microcontroller or FPGA-based projects during prototyping. - Lab bench experiments: use as a compact, low-power MHz source connected to a motherboard-based power/drive setup for educational or development work.