Informed opinions wanted. I have a 100 watt JMP 2203. In order to reduce the volume a little, save on tubes, and generate a little less heat, I COULD pull one pair of output tubes and just run as a 50 watt amp. I believe this would be safe for the amplifier. Two tubes will provide adequate loading for the power supply. The amount of current going through the output transformer would be reduced, as would current draw in the power supply as well. I don't see any mechanism by which this could be harmful as long as I pull a pair that leaves one tube in circuit on each half of the output transformer. Looking at the schematic, the tubes on either side of the OT are wired exactly in parallel. The amp doesn't know how many output tubes are installed. Is there any flaw in my logic?