Note
Radio Craft, Mar 1933, p. 576.
Radio Craft, May 1934, p. 701. (this is probably the same unit seen in Mar 1933)
Model 2140, 2 tube battery, $9.88 (without tubes)
"Complete accessories," (unspecified), $5.38.
Model 2174, 2 tube AC, $10.44 (without tubes)
"Complete accessories," (unspecified), $7.19.
Power supply, $7.25.