Philips Semiconductors
VHF power transistor
150
handbook, full pagewidth
1888MJK
Product specification
BLW87
72
L3
R1
C3a
L2
C1
C2
L1
L4
C3b
1888MJK
L8
C4
C5
+VCC
R2
L6
C6a
L5
C7
C8
L7
C6b
rivet
MGP605
Fig.8 Component layout and printed-circuit board for 175 MHz test circuit.
The circuit and the components are situated on one side of the epoxy fibre-glass board, the other side being fully
metallized to serve as earth. Earth connections are made by means of hollow rivets, whilst under the emitter leads Cu
straps are used for a direct contact between upper and lower sheets.
August 1986
7