Subj : SB200 grid meter -deflection To : All From : Alan Beck Date : Wed Jan 13 2021 09:19 am Hi, Just looking for some advice here. My Grid meter setting on my SB-200. Goes negative with the tune control fully CCW. When I turn it starts to rise until it is at peak power out. I did miswire C3. It did fry. reversed the polarity when I put it in. that is a filtering cap for the relay antenna line. Thoughts? Problem. I am not putting my nice new tubes into an amp with a fault. --- D'Bridge 4 * Origin: (1:229/426.36) .