TH25AT.10
The schematic for the TH-25AT shows:

                         R18-R21  R25  R26,27  R28  R36
TH-25A    M,M2      -12     O      X      X     X    X
TH-25A    M3,M4,X   -23     O      X      X     O    X
TH-25AT   K         -11     O      O      X     X    X
TH-25AT   M,M2      -12     O      X      X     X    X
TH-25E    T         -52     X      X      O     O    O
TH-25E    W         -62     X      O      O     O    O

And the schematic for the TH-45AT shows:

                         R19-R21  R22  R23  R25  R26,27  R28  R36
TH-45A    M1,M2,X   -21     O      O    O    X      X     O    X
TH-45A    M3,M4     -22     O      X    O    X      X     X    X
TH-45AT   K         -10     O      X    O    X      X     O    X
TH-45AT   M1,M2     -21     O      O    O    X      X     O    X
TH-45AT   M3,M4     -22     O      X    O    X      X     X    X
TH-45E    T         -51     X      O    X    X      O     X    O
TH-45E    W         -61     X      O    X    O      O     O    O

where O means USED, and X means NOT USED.
CONTINUED IN FILE TH25AT.5