[fenbach]

keefer,
attach the contacts labeled TA and TB on the board to the 2 smaller pins of the vibrator base. then connect the contact labeled GND on the board to the big "upper right" pin in my earlier diagram. the one connected to the + side of the battery [= GND]. if you look under the radio, you'll see that the 2 smaller pin sockets are wired to the transformer and the big "upper right" socket is connected to ground. the big upper left socket is connected to 6 volts negative. the aurora vibrator doesn't use it.
did you ever find a loose connection or a short??