[mikethedruid]

This radio should play very well actually, and pick up all your local stations with decent volume, even with a fairly short antenna and a good ground. The 71 should be in the socket that connects to the speaker output, since it is the final audio amp. The grid voltage on it should be about 17-18 volts according to its data sheet (see above postings). Again, I strongly urge you to trace the wiring of this set, and make a schematic of your circuit. Then check it against the schematic I posted of a typical TRF set. There may be differences, but it will be similar. Once you have done this, showing the colors of the various battery leads and where they come from in the circuit, it will be much clearer where each connects, and how the batteries (or power supply) should be connected. Also, check all your tubes. Make sure they are all good. A very weak tube that still lights will cause you to lose the amplification to the stage, and cause a very low output.