I've been doing some further LTspice simulations using cathodynes (concertina, split load phase inverters). If I'm not wrong here, it seems myself and others may have been giving out erroneous info previously. It's a little hard for me to believe that such fundamental info could have been overlooked. I plead guilty also because I believed the conventional wisdom just like most people. This isn't a final verdict though because this just comes from LTspice simulations. It needs to be corroborated by others. I'll try to show what I'm getting at in a series of posts.
The bottom line though is that one may not need a high voltage to run cathodynes and get adequate output. It appears after much simulation that cathodyne output voltages will scale with the drive voltages and power supply voltages required for most output tubes. In other words, one might not need separate voltages supplies for cathodynes in most amps. This will depend on these simulations being correct. I used the miyumi model for 6sn7
in spice. I'm presuming its fairly accurate. More posts forthcoming.
The bottom line though is that one may not need a high voltage to run cathodynes and get adequate output. It appears after much simulation that cathodyne output voltages will scale with the drive voltages and power supply voltages required for most output tubes. In other words, one might not need separate voltages supplies for cathodynes in most amps. This will depend on these simulations being correct. I used the miyumi model for 6sn7
in spice. I'm presuming its fairly accurate. More posts forthcoming.