[AMPS] Fusing PS

[Rich Measures]

>
>OK, I'm practically finished with the power supply section of my 1500 watt 
>amp. 
>The plate transformer is rated at 2400 vac at 1a CCS, and there is an 
additional
>140 watts of filament power, 120 watts worth of blower, and maybe another 50
>watts of miscellaneous draw, totalling 2710 watts. 
>
>There's a soft-start circuit in the plate and filament circuits that puts 
>a 25 ohm resistor in the primary circuit at startup.
>
sounds good

>2710w / 220v = 12.3a + 20% = 14.8 amps.  Should I use 15 amp fuses or 20 amp
>fuses?  I presume that I should choose slow-blow fuses because of the peak
>repetitive current.
>
With a C-filter, slow blow is the only game in town.  However, if there 
is a slow blow circuit-breaker in the branch, you don't need no stinkin' 
fuses. 

-  cheers, Vic


Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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