Recently retired. Ex Radio Amateur. Experienced in PCB’s of over 40 years ago with a major UK manufacturer. Diversified into Heavy Electrical Power AC and DC Switchgear 1000Amps - design, manufacturing, and commissioning for Steel Mills, Quarry stone crushers and Railways. Then into High Voltage switchgear up to 11KV for oil refineries etc etc. Then into electrical and mechanical instrumentation for power stations. Finally into Horticulture and pursuing modern day Electronics.