[RodB]

Hi Chris and welcome to the Phorum. I've read your explanation of the wiring you did. It appears the bakelite block for the transformer primary is correct. From what I see on the schematic I have, which is for the single 47 output tube, Tab 1 is establishing a negative DC grid voltage to bias the last two audio tubes. Connected to Tab 1 is the center tap terminals 4 and 12 of the secondary windings. You should be able to check the continuity of these connections using an ohmmeter with the power off. From your explanation it looks like it is correct. I assume the negative of electrolytic cap on the right side of your photo is attached to the ground lug of the bakelite block. Recheck your connections for a short or solder splash. Another point is to power up these old beasts with a dim bulb system or variac to avoid damage to the power transformer. BTW, we all do stupid stuff and keep doing it; it's the nature of the beast.