Ceramic disc capacitors. Example PC122XL, C139 it is a 390PF, 50V, 10% U J. All the 390PF 50V disc caps. I see are a lot smaller in size. probably because they do not have the U, J rating. So with shipping I do not want to spend a fortune for a couple caps. how long will the non U,J cap last under the same use?
I am starying to wonder if I sound like Andy Rooney here.
I often wondered why in many older radios the mica insulator is layered. One piece mica, some heatsink compound, another mica insulator and compound on the transistor and heat sink. Does this work better? Were the mica insulators too thin and they thought they needed something thicker?
I am starying to wonder if I sound like Andy Rooney here.
I often wondered why in many older radios the mica insulator is layered. One piece mica, some heatsink compound, another mica insulator and compound on the transistor and heat sink. Does this work better? Were the mica insulators too thin and they thought they needed something thicker?