Construction manual - Robot kit NIBO
burger
08.09.2015
2.3.9 NPN Bipolar-transistors
The five NPN bipolar-transistors
T3
,
T4
,
T5
,
T6
and
T9
are of the
type
BC337 !!
.
During placement you have to
pay attention to the polarity!
The
flat side
of the transistor is
marked on the circuit board.
T9 is to find on board
, T3 - T6 are to find on board
2.3.9.1 PNP Bipolar-transistors
The five PNP bipolar-transistors
T1, T2
,
T7
,
T8
and
T10
are of
the type
BC327 !!
.
During placement you have to
pay attention to the polarity!
The
flat side
of the transistor is
marked on the circuit board.
T10 is to find on board
, the others are to find on board
!!
Important
!!
The robot must never be switched on
without
inserted IC2
(74HC139), otherwise the
transistors will be destroyed
!
2.3.9.2 White leds
The LEDs
LED5 - LED7
have got two legs, a
short one (cathode) and a long one (anode).
They are placed on board
.
You have to pay attention to the
polarity
:
The
short leg
has to be soldered into the
rectangular
soldering pad
!
http://nibo.
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48
Type
Part
BC337
T3
T4
T5
T6
T9
Type
Part
BC327
T1
T2
T7
T8
T10
Type
Part
Led white LED5
LED6
LED7