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Aneirin -> Electrical relays and their faults (11/24/2008 11:20:01 AM)
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Reading the forum ''ask a switch '' made me remember this question, the titles of the threads made me think ' logic state flip flops and their problems, the indeterminate value', then I remembered my relay. I have a problem with an electrical relay, if there is anyone here that remembers those things ?
What it is, is it seems to have become weak in that it flutters between the contacts causing burning, the carbon builds up, the gap gets smaller and the fluttering starts with a vengeance. I have cleaned the contacts several times with paper dragged between the faces, which works for a few weeks until the problem occurs again. Now, my electronics theory is rusty, not that I was much good at it anyway, but am I right in thinking the problem is occuring because the energizing coil is weak, possibly due to age, or is it that the supply voltage is down, (must get a multimeter) ? Could I be right in thinking that the relay really needs replacing or is it likely the problem is elsewhere ?
The relay is in the slow start circuit of a colour tv, the tv being about ten years old and of a lesser make.
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