Articles by admin

GPZ 7000 X-Coils

X-Coils (https://www.x-coils.com/) are the “first” after market coil made available for the GPZ 7000. Their design is quite adequate being somewhere between a Coiltek and…


Aussie Gold Hunters

Aussie Gold Hunters (AGH) “a reality TV show that has quite literally damaged the hobby and business of prospecting and mining for gold due to…




MPPT PWM Solar Water Heater Controller

ACTii AC7391 heating controller for Solar Panels REFERENCE: https://actii.pl/en/ladowarki-prostowniki/979-mpm-pwm-heater-charging-controller-for-solar-solar-panels-actii-ac7391-6931240073919.html PWM regulator for heaters with the algorithm for searching the maximum MPPT power point from solar…



Why I Solder Copper Wires

Do you have to solder bare copper wires? Commonly called “tinning”, solder has a great many uses in plumbing, electrical and light metal work. It…