In Reply to: RE: Excess Line Voltage vs Amplifier Sound posted by krankkall on January 9, 2017 at 08:31:06:
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.
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Follow Ups
- RE: Excess Line Voltage vs Amplifier Sound - sayntjack 16:08:06 01/09/17 (12)
- RE: Excess Line Voltage vs Amplifier Sound - Steve O 17:09:29 01/09/17 (9)
- RE: Excess Line Voltage vs Amplifier Sound - sayntjack 18:53:59 01/09/17 (8)
- You sure about that?... - Steve O 20:28:44 01/09/17 (7)
- RE: You sure about that?... - sayntjack 12:57:56 01/10/17 (6)
- Ah-Ha - Steve O 16:48:35 01/10/17 (5)
- RE: Ah-Ha - sayntjack 17:50:49 01/10/17 (4)
- Diagram posted (nt) - Steve O 18:16:08 01/10/17 (3)
- RE: Diagram posted (nt) - sayntjack 10:03:03 01/11/17 (2)
- RE: Diagram posted (nt) - sayntjack 10:10:34 01/11/17 (1)
- Okey doke (nt) - Steve O 15:20:53 01/11/17 (0)
- RE: Excess Line Voltage vs Amplifier Sound - krankkall 16:56:25 01/09/17 (1)
- RE: Excess Line Voltage vs Amplifier Sound - sayntjack 18:40:13 01/09/17 (0)