Yep. Those are the components I found in the unit I reverse engineered. I imagine they wimped out a bit by creating somewhat less than the RMS-ideal value of 170V. I didn't measure the under-operation voltage. As you can see, without any snubbers, output filters, etc., this was a minimalist design. I didn't trace their circuitry for driving the half-bridge MOSFETs, but the KSP42 = MPSA42 TO-92 transistors are a clue. Wimp city.