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In Reply to: UREI 813 A Tweeter protection bulb needed posted by Chris Spafford on January 29, 2002 at 12:54:37:
unfortunatly I don't have the details of this particular component but you could calculate your own protection required using a series paralel circuit of low voltage ie;12volt 20wattI use this type of protection on 1 1/2 to 2" horn drivers on PA hire
equipment, never lost a driver but take out the odd bulb.the idea, light globes at low voltages have low resistance as the voltage increases the resistance gradually increases, but only slightly untill it reaches a threshhold and it lights up, displaces power, increases it's internal resistance and protects the driver.
Bose products use this method on most of their crossovers hence their
speakers are hard to overload Just putting the power elsewherehappy listening Dan
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- Re: UREI 813 A Tweeter protection bulb needed - danztech 03:29:05 02/06/02 (0)
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