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**Amplifier Discussion / Re: Power supply/ power amp question**

« **on:**January 17, 2021, 09:45:40 PM »

Transformers produce AC voltages, and those voltages are called RMS voltages. SInce AC voltage changes all the time, we use an average.

36v AC, moves from zero up to a peak of About 51v, then back down through zero and out to -51v and back. The average of that zero to 51v is 36v. When you rectify and filter that, the caps charge up to the peak of 51vDC. This is how it works. You take the RMS AC voltage of the transformer, and multiply by 1.414 to get the peak voltage, which will be the rectified and filtered result.We might subtract a volt or two for losses in the rectifiers or some such, but that basic formula is close enough.

36v AC, moves from zero up to a peak of About 51v, then back down through zero and out to -51v and back. The average of that zero to 51v is 36v. When you rectify and filter that, the caps charge up to the peak of 51vDC. This is how it works. You take the RMS AC voltage of the transformer, and multiply by 1.414 to get the peak voltage, which will be the rectified and filtered result.We might subtract a volt or two for losses in the rectifiers or some such, but that basic formula is close enough.