This auction consists  of a Welch scientific unit. Most likely a physics demonstration unit.Possibly a wireless a transmitter,The unit measures about 7 in. by 6 in. by 10 1/2 in. tall.3 of the legs are wood with coils wrapped around them.The tube  is a RCA Radiotron UX 210.The  binding posts read MIL-A-Meter.The tube is defective. Could be parts missing as I cannot find another. As shown.