R-392 Tubes

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.

 ID    Function          26A6 26A7/GT 26C626D6 12AU7 6AJ5
 V201  1st RF Amp        26A6
 V202  2nd RF Amp        26A6
 V203  1st Mixer                      26C6
 V204  2nd Mixer                      26C6
 V401  1st Xtal Osc                                  6AJ5
 V402  2nd Xtal Osc                                  6AJ5
 V501  1st IF Amp        26A6
 V502  2nd IF Amp        26A6
 V503  3rd IF Amp        26A6
 V504  4th IF Amp        26A6
 V505  5th IF Amp        26A6
 V506  6th IF Amp        26A6
 V601A IF Cath. Foll.
 V601B 1st RF AGC Rect.                        12AU7
 V602A RF & IF AGC Rect.
 V602B Squelch Rect.                           12AU7
 V603A Detector
 V603B Noise Limiter                           12AU7
 V604  BFO               26A6
 V605  Squelch Control                               6AJ5
 V606  1st AF Amp                                    6AJ5
 V607  Phase Inverter                                6AJ5
 V608A
 V608B 2nd AF Amp             26A7/GT                6AJ5
 V609  AGC IF Amp        26A6
 V701  Multivibrator                           12AU7
 V702  200 KC Xtal Osc   26A6
 V703A Harmonic Amp
 V703B Distorter                               12AU7
 V801  VFO-Mixer                          26D6

 Total                   11   1       2   1    5     5
 Spares                  4    2       2   1    2     10
                         26A6 26A7/GT 26C626D6 12AU7 6AJ5

Additional spares

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