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Old 14th January 2003, 08:58 PM   #51
Joel is offline Joel  United States
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It's still wrong. With 160V in, and a choke in series, there is no way you're going to get 210V.

Probably around 150V or even less would be more realistic.
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Old 14th January 2003, 09:05 PM   #52
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Yes,185 VAC would come close.
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Old 14th January 2003, 09:56 PM   #53
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Thanks guys.

But, that way it was appeared in Glass Audio, and it is designed
by well respected Mr.Erno Borbely.
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Old 14th January 2003, 10:03 PM   #54
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Even when disregarding the choke you would at best get 220 VDC at the output.

Add the choke and the load to the equation and you'll see the PSU voltage drop.

Even the best make mistakes (I may be one of them )

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Old 14th January 2003, 10:56 PM   #55
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Hey Shifty,

I would be interested in seeing a schematic on this. Would this budget include all parts purchased?

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Old 15th January 2003, 12:18 AM   #56
SHiFTY is offline SHiFTY  New Zealand
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OK, try a SET 6B4 (2a3 with 6V filament) and assume some access to scavenged/used stuff...

(Prices from and others)

2x sovtek 6B4G $59.95
2x sovtek 6SN7 $19.90
2x Hammond 125ESE $70.00

Scavenged power tranny & choke & chassis, diode rectifier...

Various other parts (resistors & caps) ~$50

Hey presto! cheap and choice. And about 8W, you can run the sovtek 2a3/6B4 at 30W dissipation quite happily. I can't find my favourite 2a3 schematic at the moment, but there are a lot around.

You don't need to spend thousands to build something good.
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