Zenith 7S558

[AlTinkster92]

Hi folks, kinda new in this Forum but active in AK. Thought I would ask a question. I have the radio that I bought (supposedly restored) off The auction site. I have not plugged it in for over 2 years. What size variac do I need to safely bring this radio up? Its the same radio shown in my avatar. Thanks very much. Also, is there anywhere close to Charlotte NC I could take this radio to have it looked at should I need to? AL