We used to say that fixing something was easier than bringing up a design for the first time. After all, the thing you are fixing, presumably, worked at one time or another. These days, that’s not ...
You are able to gift 5 more articles this month. Anyone can access the link you share with no account required. Learn more. DEAR SUN SPOTS: Would you please repeat your list of old radio repairers ...
Old radios often had selenium rectifiers to convert AC to DC. The problem is that the old units, dating back to 1933, are prone to failure and to release dangerous chemicals like hydrogen selenide. [M ...
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