Nicron #48
20 августа 1997 |
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Iron - repairing power by force of lungs.
Blow, and everything will be ... (C) WLODEK BLACK ... I've got work to low-frequency amplifier, "Radio U-101, "1986 edition. In recent years it has become too much "pop" the volume control. Stereo balance knob also began to "play pranks." I must say that the appearance of faults of this kind I detsel surprised, since I was known that this device was used variables resistors made by thick-film integrated technologies, such as the one applied in the production of hybrid microcircuits. According to the magazine "Radio" mid-80's, such controls is virtually permanent. But patience finally snapped, and I climbed inside the amplifier. M-da-a, operation for 11 years, even in the same hands, but not anywhere, and at school, gave his "fruit" ... Amplifier repeatedly visited and discotheques in the halls, and the voice of "street" and adopted over the years "inside" is not only the usual dust, but also one that that is formed by sanding parquet flooring. Construction of film peremennikov not too different from normal. Housing only another form, but conductive horseshoe lighter in color and it seems brilliant. It is amazing, but it is not visible traces of the contact slider. And on that I drew Note: Resistor is working without any lubrication (in the usual potentiometer with carbon conductive layer that is smeared grease). Became clear that the clumsy methods recovery of carbon resistors (cleaning, shading with graphite and A new lubricant) here will not work. Until now, I can not give myself report that gave me the crazy idea just to blow off lie inside the resistor dust ... Probably still lack lubrication, and - as a consequence - the lack of adhesion of dirt, which breath does not remove. Typing in the lungs a little more air, I loudly, with cotton ("ugh!") dramatically gasped for RADIODETAL ... The results were striking. The regulator has earned as brand new, and continues to work! "Eternity" quality factor Baltic Soviet product was confirmed. Here such here pies. And do not seek to replace the radio market, do not dismantle wireless set, no need to take over the soldering iron. As see, and inanimate nature, it happens, the wounds will heal, if they blow ... Vladimir Bulchukey. ZXNet: 095/462
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Iron - repairing power by force of lungs. |
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