The current plan is to:
- Include two 12 V, 1 A linear regulators to provide a much cleaner power supply. Each Audio Amplifier will therefore have it's own (largely isolated) PSU.
- Include a 12 V, 3 A Buck converter to provide an isolated power supply for the solenoids and the fan. This is an adjustable type (identical to the one's used in the Sump and Butts Pis, so I will be able to reduce the power to both the fan and the solenoids to provide the optimum compromise between performance and noise.
- Look again at the temporary measure that I included during the summer to switch off the mains power to the system overnight. If the above measures work, then this may not be needed.
- Look into providing better ventilation and an airflow in the Nave, to refuce the summer temperatures in there.