Can you make a +/- supply with valve rectification ?

[Shoog]

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

Shoog

 

[EC8010]

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.

 

[Shoog]

Thats good to know. I have just aquired a stash of UY41 valves so I might look at using them.

Shoog

 

[Sch3mat1c]

You can also stack two normal power supplies, they need isolated HV windings of course.

Tim