Hi Peter,

I've put a lot of time (and money)in testing the TS, I started with solid state switching, then I tried the relais version and the last one had a rotary switch (6 switches) wich commutated the batteries directly instead of driving transistors like in T-7 on Muellers report.
Well the batteries don't charge, they slowly drop in voltage, depending on the load. One thing that confuses me is that in John's T-1 and other drawings the ground between the two lower batts(3-4) is shorted directly through the switch but also going trough the AC out. I mean how can you have voltage on the bridge rectifier if the switches short the grounds directly?
That's why I made the wiring like T7 wich made more sense in relation to the above, only not having the transistors but mechanical switches. I've tried 20Hz and up to 400Hz the mechanical is 50% duty while with the solid state I tried from really narrow to 50%.
The best results I had by putting a coil on the output wich gave SSG type spikes. but still...
I thought the TS was supposed to have a high charging rate and pretty impressive loading capabilities.
Am I missing something? Suggestions?

best regards,

Mario