[Radioroslyn]

Would worry too much abt the resistances. There are a few things you can check. Smell around the bottom of the transformer under the chassis. Does it smell burnt? Remove the 80 tube and measure the ac voltage from terminals 6 and 12 and then 6 and 9. Voltages should be pretty close + or - 10v. Bad transformer will have a large difference between the ct and one end. Typically lv windings aren't an issue if the hv filters short, they take out the hv winding. With 80 tube removed plug in the set and leave in on for 10 or 15 min. Have a look at the tubes heater to be sure they are lit. Don't think the early model 20's had a dial lamp. Transformer should feel pretty close to room temperature. If it is warm, hot or smoking. That not a good sign.