In severe climates place the 8e three components in a small cardboard pill-box and fill it with paraffin wax, bringing out the leads so they can be readily connected to their proper points. Replace with the best components obtainable. When the strip is dry it should be oiled with Nujol.Īnother source of noise may be leakage in the input group (the two in - megohm resistors and the. This should be renewed when it disintegrates. This can be dried by placing in the bottom of the piano a pint fruit jar which is 1 / s filled with calcium chloride. Moisture may get into the wooden strip supporting the pick-up screws. A thin strip of paper can be worked between the strings and the pick-up screws to remove stubborn particles of dirt. Clean with a vacuum- cleaner with blower attachment, which should be run for a few minutes so that the hose will be free from dirt. NOISE ELIMINATION: First suspect dirt on the pick-up screws.Īre insulated with lacquer, but this is not perfect. Use only glass tube8 in the input, as the leakage isle 88, and only glass tubes in the output, because of the possibility of a short to the shell. The tone control is subject to wide variations according to individual requirements Some forms depend on the cathode by-pass for control therefore, replace this component with exact value. The output transformer is especially designed and if it is damaged, an exact re placement is nece 8 sary.
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