soundsgood
New member
hello all, my son gave me crack for christmas, GOOD BOY! i had a lot of fun with the build. it sounds wonderful. i replaced the supplied rca 5963 with a french military radiotechnique 12au7wa that i had on hand. it brightened up the mids and highs just the right amount while still retaining that great bass bloom. as with all my audiophile gear i clean the tube pins with a sand eraser from an art supply store, then clean with q-tip and isopropyl alcohol and then a light coat of deoxit gold taking care not to bridge the tube pins. yesterday noise developed in the left channel. it is very faint and sounds like the static when the needle first hits the groove and is intermittent. i swapped the input tubes but no joy. i feel confident that my solder joints are solid. i am not a beginner with a soldering iron and rebuild old tube radios as a hobby. i suspect the power tube has become noisy. so here is my question: can you tell me what power tube was shipping last christmas? i would like to maintain this sonic balance. the tube only says 6080wb usa. it has 3 micas top one is round, double halo, white insulator at pins and silver coating is so thin you can almost see through it. thank you for such a terrific product and hope to see Bottlehead at T.H.E. show newport beach.