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Original Message
RE: Excess Line Voltage vs Amplifier Sound
Posted by sayntjack on January 9, 2017 at 16:08:06:
Hi Krankkall. Regarding your 6.3V/4A buck transformer approach, I assume that the transformer is a 120V pri, 6.3V sec and that you have connected the secondary in series with the primary in subtractive polarity to get ~114V. Given the secondary rating of 6.3V/4A indicates that the transformer is 25VA capacity (6.3V x 4A). If this is so, then the current rating of the 120V winding is only 0.21A (I=25VA/120V) which is inadequate for the typical 1.5 - 3 amps a typical 20-50W vintage amp is likely to draw.