Velleman-Kit K4305 - 1. JUMPERS; 2. DIODES (Check the polarity); 3. ZENER DIODES (Check the polarity)

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4
Assembly
Mount all components onto the PC boards (mount the two boards)
1. JUMPERS
q J1
q J2, mount for BAR mode, do
not mount for DOT mode.
BAR DOT
+3
+3
+2
+2
+1
+1
0dB
0dB
-1
-1
-3
-3
-5
-5
-7
-7
-10
-10
-20
-20
2. DIODES (Check the polarity)
D...
CATHODE
q D1: 1N4148
q D2: 1N4148
q D3: 1N4000… 1N4007
3. ZENER DIODES
(Check the polarity)
ZD...
CATHODE
q ZD1: 6,2V (6V2)