I bought a 10 pack of these capacitors to replace the old paper wrapped electrolytics seen in older tube radios. I figured 40ufd would do OK for the high and medium voltage train for tubes. The Zenith I put these in needed 1 80 and 1 40, so this kit worked just fine. Took out the old, wired up the new (with lots of heat shrink), and fired it up. The hum level went down to almost zero. Good clean audio on all channels. I recommend these parts as long as the values are close to what your particular radio needs.