Earth-Moon-Earth Photograph Gallery 'JH0WJF' Yaguthi Japanese RF power tubes 6F62R 7F37 and 4X150G 144MHz 6F62R HPA Modifyed TV-TX Testing 144MHz 6F62R HPA Inside 144MHz 6F62R HPA Rear view 144MHz 6F62R HPA Rear view and powersupply Powersupply Highvoltage transfomer Next