Hi all,
I came from solid state world. I live in Poland. My friend gave me set of 2 output Transformers 5k. Want to try my luck in tube world with spud.
How to replace 260-0-260/tube rectification with solid state one? I still need center tapped or all I need is proper level of output DC?
CLC from tube PSU will be enough?
Cheers,
Daniel
If you use SS rectifiers and a full wave bridge, you don't need the center tap, but you will need a much lower voltage transformer.
You can simulate it pretty closely, The Duncan Amps power supply designer is pretty easy to use and if you specify things using actual values, it's pretty darn close.
http://www.duncanamps.com/psud2/index.html
This is also really helpful, Hammond's rectifier design guide. It shows solid state diode, but the principles are the same. Mostly the full wave and full wave bridge. A typical vacuum tube rectifier is full wave, that uses the center tap. Totally applicable with SS, but going to full wave bridge with the same trans will give a lot more output voltage, as in nearly double.
If you already have the transformer, you can go with SS, center tapped full wave, but your voltage will still be higher, the diodes drop much less voltage than a tube.
Yeah some great info there. I use PSUD2 regularly and it's always VERY close to actual measured. Sim the PS I spec and then replace the tube rectifier with SS diodes and you will see the difference. One advantage a tube rectifier has, especially the indirectly heated ones is the slow voltage rise. It gives the other tube heaters a head start on the B+, which output tubes like.
@mikegalusha Thank You! - so it is totally different beast and there is no easy transformation from tube setup into ss - question closed.