The 2SD1138 NPN Power Transistor is a TO-220 package transistor used in the vertical deflection circuit of the Electrohome G07 CRT monitor chassis. Commonly designated as positions X401 and X402 on the G07 board, this transistor is a critical component for restoring proper vertical deflection and image stability on G07-equipped arcade cabinets.

Whether you're doing a full cap kit restoration or diagnosing a collapsed vertical picture, replacing worn or failed deflection transistors is an essential step. Keep spares on hand for any serious G07 repair kit.

Specifications

• Part Number: 2SD1138
• Type: NPN Bipolar Junction Transistor (BJT)
• Package: TO-220
• Application: Vertical deflection circuit
• Board Positions: X401, X402 (Electrohome G07)

Compatibility

• Electrohome G07 CRT monitor chassis (all variants including G07-CBO, G07-ABO, G07-FBO)
• Arcade cabinets using the G07 chassis — Galaga, Ms. Pac-Man, Donkey Kong, and many other classic titles
• MAME cabinet builds using restored G07 monitors

Why Buy From Paradise Arcade?

• Correct OEM-spec replacement part for G07 vertical deflection
• Sourced specifically for arcade monitor repair use cases
• Pairs perfectly with G07 capacitor kits and width coils available in our store
• Low cost insurance — keep extras on hand for future repairs