I have a vox cambridge chassis and cabinet that I'd love to turn into a supro 24. I have a set of classic tone 18w transformers also kicking around. PT secondary is about 15 volts low on each leg and the OT primary impedance is abour 2k ohms high depending on secondary impedance. I'm planning on playing with voltage dropping resistors in the power supply, and probably using the 4 ohm tap secondary of the OT. I'm not terribly concerned that this be an exact recreation of a 24 but would like it close sound wise. Should I attempt the build with the 18w trannies? Any pointers? I'm mostly concerned that the OT impedance will be too high for the 6973 tubes.