12-31-2025, 10:48 PM
Vlad,
I was calculating a capacitor, not a resistor, in order to drop 10V at 150mA and not dissipate any unnecessary power.
Also. You of all people should now that dissipating 1.5W is nothing to sneeze at: a 5W resistor dissipating 1.5W will get really hot. And it takes space as well.
I am dissipating at this point 0.5W om an 82 Ohm / 5W resistor, and the temperatire I measured yesterday (my finger could not accurately assess it because it got a little burnt) with a thermocuple was in excess of 150F. Again, at mere 0.5W. With a decent size porcellain 5W resistor.
So, the calculations are necessary to accurately get the capacitive value as the resistor, while can be used, is less convenient and I do not want it.
I was calculating a capacitor, not a resistor, in order to drop 10V at 150mA and not dissipate any unnecessary power.
Also. You of all people should now that dissipating 1.5W is nothing to sneeze at: a 5W resistor dissipating 1.5W will get really hot. And it takes space as well.
I am dissipating at this point 0.5W om an 82 Ohm / 5W resistor, and the temperatire I measured yesterday (my finger could not accurately assess it because it got a little burnt) with a thermocuple was in excess of 150F. Again, at mere 0.5W. With a decent size porcellain 5W resistor.
So, the calculations are necessary to accurately get the capacitive value as the resistor, while can be used, is less convenient and I do not want it.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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