04-08-2018, 11:24 PM
30-70 ohms is an ok resistance. The radio has not been used and it has oxidized. Once energized the current will clean it up. If it were megaohm then yes, needs cleaning. I usually don't bother with tens of ohms.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.