5-100WB CRT

Pin            Voltage                       Board Connection                         Notes  
1                See notes                           f & K                                    Pin 1 of the CRT is also connected to "K" on the PC board via a 10K  resistor. 
2                See notes                           f                                           Filament voltage is .585 VAC at .48ma (AC) and is measured directly across pins 1 & 2. A 150 ohm resistor 3 or 5 watt is utilized for "Rfilament". 
3                  -306                                 G                                          This voltage is -609 VDC when referenced to +HV 
4                  -259                                 F                                           Focus voltage -259 gives my tube the sharpest image. (Varies from tube to tube) 
5                                                                                                       NC (no connection)  
6                                                          X2                                         Horz deflection plate
7                                                          X1                                         Horz deflection plate
8                                                                                                        NC (no connection)
9                                                          Y1                                         Vert deflection plate
10               +305                                                                              Connected to HV+  (CRT pins 10 and 13 are tied together). Disconnecting (floating) this pin from HV+ will dim the CRT considerably and applying a negative voltage 
                                                                                                           (HV-) will put the CRT tube in cutoff (no display).                             
11                                                         Y2                                         Vert Deflection plate
12               +164                                   A                                          Astigmatism  (+164 gives my tube the sharpest image. Varies from tube to tube) 
13               +305                                                                               Connected to HV+  (CRT pins 10 and 13 are tied together)