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Old 25th August 2011, 04:36 AM   #1
mhtplsh is offline mhtplsh  India
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Default to Change tweeter protection device

I have tried circuit2 for 3" VC compression driver assuming it to be 50W.
But 2N 3055 become s too hot. it is 15A device.
Can i substitute it with TIP 35 which is 25A device ?
Or replacing the transistors with Mosfet will be better?
Any other suggestion also ok.
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File Type: pdf tweeter protect2.pdf (28.7 KB, 64 views)
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Old 27th August 2011, 10:49 AM   #2
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scrap the circuit and put a turn signal light bulb in series with the tweeter.

That would be something like a 1157 bulb
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Old 30th August 2011, 01:42 AM   #3
djk is offline djk
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1156
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Old 30th August 2011, 09:05 AM   #4
AndrewT is online now AndrewT  Scotland
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What's wrong with giving us the bulb tech data?
21W 12V tungsten filament, or there abouts.
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Old 30th August 2011, 09:14 PM   #5
djk is offline djk
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2.1A, 12.8V, S8, SC bayonet base.

In the USA the 1156 can be found at most Gas-and-Go type stores.

#1156 MINIATURE BULB BA15S BASE, S8 SC BAY 12.8V 2.1A 32CP, 1156, #1156, #1156 BULB, #1156 LAMP, #1156 MINIATURE LAMP, #1156 INDICATOR, EIKO# 40190,BIRNE,BOMBILLA,AMPOULE,BULBO, UPC#014271022104
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