The Official Dual Rail Thread

[Joey Voltage]

I've got my MOSFET buffered cathodyne phase inverter/driver up and running. If you have any questions/want me to take any measurements, let me know.

Over complicated schem because I want to play with individual bias.
http://music-electronics-forum.com/t16854/#post148551

Mike,

I have a good design that I'm working on as well in the same design concept of loud punchy an clean. It is a bit more complex than the split plate/screen design as there is some active circuitry, but when I have it up and running, and working the way I want it to. I will shoot it over to you If you don't plan to use it commercially. In fact I may even let you look it over if you are really curious.

[Joey Voltage]

Other then using the old 6146B or 6550, Ampeg SVT B+ rail circuit... this is all I've ever messed with....

Yeah! that will do it! the valve rectifier may not be a bad idea since you squash any chance of silicon hash getting injected into the B+ line. If you parallel them, and maybe throw in some resistive balancing, you will still have punch and possibly some give to still retain a decisively tubey nature.

[defaced]

I've got my MOSFET buffered cathodyne phase inverter/driver up and running. If you have any questions/want me to take any measurements, let me know.

Over complicated schem because I want to play with individual bias.
http://music-electronics-forum.com/t16854/#post148551

[Wilder Amplification]

I have to admit, I have no idea what this means. Are we talking about split rail supplies as used in solid state circuits? Or are we talking tubes with the cathodes going to some negative voltage supply instead of ground? Or are we talking about high B+ for power stage plates, and low B+ for screens and preamp? Or something else?

High plate B+/low screen B+.

Bruce...the SVT was the amp that actually got me curious about dual rail technology. That's one amp I never hear about people having problems with in regards to eating tubes, blowing OTs and whatnot. One badass amp.

[Bruce / Mission Amps]

Other then using the old 6146B or 6550, Ampeg SVT B+ rail circuit... this is all I've ever messed with....

[Enzo]

I have to admit, I have no idea what this means. Are we talking about split rail supplies as used in solid state circuits? Or are we talking tubes with the cathodes going to some negative voltage supply instead of ground? Or are we talking about high B+ for power stage plates, and low B+ for screens and preamp? Or something else?

[Wilder Amplification]

Well since my OT Plate Load thread kinda morphed into that, I figured I'd start a separate thread dedicated to dual rail technology. I'll be posting up schematics of my build once I come up with a preamp that I'm happy with for it...the power supply and power amp are pretty much a given.

For those of you who have experience with dual rail amps, please post up! This will hopefully be a very informative thread for those who are interested in learning about dual rail amps. I'm very interested to know things like what phase inverter would work best with them (paraphase, cathodyne/buffered cathodyne, LTP) as well as valve life expectancy in a dual rail amonst other things.

Let the posting begin!