Classification
TBS - Digital electronics
TBC - Electronic circuits
3
TGN - Control engineering
2
DHA - Computer equipment and periphery
1
TBR - Analog electronics
1
TBV - Electronic devices
1
TCA - Communication science - general
1
TCC - IT - Information and telecommunication
1
TCN - Microprocessors
1
TCP - Microcomputers
1
TEA - Electrical engineering - general
1