This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers.
Ouch! Sorry to hear that, Rodman. I'm very surprised, though. Here is a datasheet for an Energizer alkaline "C" battery, indicating a **minimum** nominal internal resistance of 0.15 ohms. Even if we make the extremely unrealistic assumption that it could maintain an output of 1.5 volts into a direct short, and even if we make the extremely unrealistic assumption that the DC resistance of the tweeter is zero, and even if the capacitor offered zero resistance to the resulting current, the battery could only provide (1.5^2)/0.15 = 15 watts, which in that situation would all be dissipated in its internal resistance. While datasheets I've seen over the years for various tweeters all show power handling capabilities of at least several tens of watts. Regards, -- Al |
Battery anatomy/specs aside, the driver was working, prior to being connected to a 33uF, non-polarized film cap and a C cell. It was reading 6 Ohms(correct nominal, according to the tweeter’s label), before it opened up. Imagine what(perhaps) 80VDC, would do. The tweeter had been sitting on a shelf, for the past 20+ years. My son blew the other, clipping his amp into a pair of Quart One bookshelf speakers, back when he was a kid. Not a big loss(at all), but- thanks for your condolences . |
the driver was working, prior to being connected to a 33uF, non-polarized film cap and a C cell. It was reading 6 Ohms(correct nominal, according to the tweeter’s label), before it opened up.1.5V across 6 Ohms = 0.25A or 0.325 Watt Back EMF? or Is the capacitor fully discharged before connect to the tweeter? |
