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21st October 2009, 02:12 PM
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diyAudio Member
Join Date: May 2004
Location: Wynnewood, PA
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Switch Question
Folks:
I'm building a small amp with my 13 year-old daughter using Brian Bell's LM3886 stereo kit (i.e., one power supply). We'll be using an Antek AN-3225 transformer, which is 300 VA and has 25V secondaries. I'd also like to use a power switch purchased from Mouser (108-0029-EVX) that is rated at 5A at 120 VAC. My question is simple: do I need to add a relay to the circuit to prevent premature failure of the switch, or is the switch substantial enough to handle the inrush current on the Antek transformer? Many thanks! Regards, Scott
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