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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Thoughts on doubler supply straight out of wall no transformer 450V caps.??? posted by -3db on September 16, 2002 at 00:55:06:
No don't do this. Your amp will not be isolated from the mains making it an electocution hazard to you and everyone else.Two sensible routes would be - either use a 1:1 isolation transformer, one with a separate primary and secondary winding, then use your voltage doubler circuit.
Or use an industrial control transfomer one of those with say a 415V primary to 230V secondary, then run it in 'reverse' with the mains supply to the 'secondary'. This will give you about say 400Vac at the 'primary'. That way you wouldn't need your voltage.
Note the voltages depend on where you are, I've given a UK example. These transformers are designed to be connected across two phases of a three phase distribution system.Both options are inexpensive using 'off the shelf' components.
Regards,
Andy
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Follow Ups
- Definately not! - EL84 01:55:47 09/16/02 (0)
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