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1st November 2011, 07:16 PM
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#1 |
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diyAudio Member
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how many amps ?
I am powering up a Spectral DMA 50 after several years down time and need a variac to reform the caps . The amp will deliver 120 watts into 4 ohms. How many amperes does the capacity of the variac need to be?
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1st November 2011, 07:24 PM
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#2 |
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diyAudio Member
Join Date: Nov 2010
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2 Amps should be sufficient, though probably doesn't need doing.
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1st November 2011, 07:46 PM
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#3 |
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diyAudio Member
Join Date: Sep 2007
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Getting a variac just for that seems a bit extreme... why not power up using a bulb for mains current limiting, say 100 watt rating if you are worried. That will limit any current surge and allow the caps to reform although as toprepairman says I don't think they will need it either.
The official current draw is around 125 watts quiescent so around 0.5 amps.
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