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Old 30th October 2004, 05:28 PM   #1
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Default Can you make a +/- supply with valve rectification ?

Just a simple question. Can you make a split rail supply with valve rectification tubes?
If so what transformers would I need?

Shoog
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Old 30th October 2004, 05:47 PM   #2
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Of course! Electronics was around long before the evil silicon arrived. You simply make a bridge rectifier. The problem is that although one pair of diodes has a common cathode (allowing you to use EZ81 or GZ34), the other pair have their anodes connected together. Therefore, you need individual diodes and extra heater windings. EY84 is a possibility, as are any of the TV efficiency diodes.
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Old 31st October 2004, 07:37 AM   #3
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Thats good to know. I have just aquired a stash of UY41 valves so I might look at using them.

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Old 31st October 2004, 05:35 PM   #4
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You can also stack two normal power supplies, they need isolated HV windings of course.

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