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Metal Case; Rubber Washer - Velleman K4040 Illustrated Assembly Manual

Stereo valve power amplifier
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Assembly into the unit
Mount the ring core transformers:
Stick a adhesive foot to the base of the cabinet, in the middle where each transformer has to be put.
Fig. 5.0
Mount an output transformer on the left-hand side of the housing, see figure 6.0.
ADHESIVE
PROTECTION
FOIL
OUTPUT
TRANSFORMER
ZD043
ADHESIVE
FOOT
WIRES
Fig. 6.0
Turn over the housing and solder the trans-
former leads to the output terminals, see
figure 7.0.
Do not forget to insert a 3 cm length of insulating heat shrink sleeve over the wires:
Solder the double yellow wire to the 4 Ohm loudspeaker terminal.
Solder the red wire to the 0 loudspeaker terminal.
Solder the blue wire to the 8 Ohm loudspeaker terminal.
IMPORTANT: Heat the terminals up until the solder melts easily. Then slide the insulating heat
shrink sleeve over the leads.
16

METAL CASE

RUBBER WASHER

TRANSFORMER
RUBBER WASHER
PLATE
BOLT
WIRES
WIRES
ADHESIVE
PROTECTION
FOIL
POWER
TRANSFORMER
8D002
ADHESIVE
FOOT
Check the position of the leads.
4
Fig. 7.0
ADHESIVE
PROTECTION
OUTPUT
TRANSFORMER
ADHESIVE
WIRES
8
0
HEAT-SHRINK
SLEEVE
Cut
4 x 4 cm
FOIL
ZD043
FOOT
WIRES
BLUE
RED
YELLOW

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