Resources
Wiki (in Polish)
Check out the green monitor Neptun M156B Monitor that shares the same casing as Neptun 150A TV.
Documents
Internals
Main Board
BZ-1001 – Power Supply Board
Power Transformer
Unitra Zatra TS50/11
MV-1004 – Vertical Deflection Module
MF-1003 – Audio Module
MW-1003 – Video Amplification Module
MS-1002 – Synchronisation Module
MP-1003 – Video Intermediate Frequency Module
MG-1002 – Tuner Module
MH-1001 – Horizontal Deflection Module
Switch Panel
Channel Tuning Panel
CRT
31ЛК3Б Soviet tube.