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|10th December 2012, 10:50 AM||#51|
Join Date: Jul 2004
Location: Scottish Borders
Forget about trying to determine transformer current from amplifier current.
The connection from one to the other is very complex. Look at Goottee's Thread for just how complex.
If you can get beyond that complexity and think about what the transformer rating is:
The VA rating, from which we can extract the current rating, ONLY applies when the transformer is feeding AC current to a purely resistive load.
That is NOT what happens when you rectify and smooth the output of a transformer.
Stay with the simple determination. VA~1.5times total maximum power.
Then measure the resulting ripple on the smoothing capacitors and decide if that meets your target for amplifier performance. Adjust if you are not happy.
regards Andrew T.
Sent from my desktop computer using a keyboard
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