The R-392 receiver contains 25 tubes of six types. The following table shows the function and type of each tube, the total number of each type, and number of each type in the running spares kit. (Table courtesy Jon Oldenburg)
Besides tubes, the running spares kit also contains:
2 lamps, dial, 28 volts, 0.175 ampere, GE T-3 1/4 [GE 313]
6 fuses, 1/2 ampere, type 3AG
6 fuses, 5 ampere, type 3AG