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Sorry David, capacitance is capacitance.
Yes, you CAN use an AC rated cap in place of a DC rated cap. The major difference is that the AC cap will have more leakage (electrical leakage). If you're using it for some memory circuit then it won't serve the purpose very well. But if it's to reduce AC hum it should be just fine.
Hope this helps.
Happy Holidays.
'')
Nuff Sed
The designers probably put an electrolytic (polarized) capacitor there for a reason, but you would need to know if it is used for blocking or for stabilizing a coupled signal. AC capacitors are designed for lower "series resistance" to reduce heat dissipation in power circuits.
You can generally use an AC capacitor to replace a DC, but NOT the other way around, since the reverse polarity could create undesirable chemical reaction in the electrolytic (e.g., overheating, leaking, fire, kaboom).
Jim W
Take the unit to an authorized repair center. They will understand what needs to be done with the capacitor. As far as I can remember the difference is in the labeling. A capacitor will pass A C and block D C this is just how the design works.
Ray
Why not just buy a 10 uf 450 dc - they only cost less than $8.
David B
not with out mod's.. AC is Alternating current and DC is direct current they both have different syn waves and are not switchable back and forth