Velleman-projects K7102 Assembly instructions Manuel d'utilisateur télécharger pdf (Page 5)

Construction

D1 : 1N4148

2. Diode. Watch the polarity !

D. ..

CATHODE

ZD1 : 3V9

3. Zenerdiode. Watch the

polarity !

CATHODE

ZD...

The coil consists of two windings around the ferrite core supplied.

In order to facilitate winding, thin double sided sticky tape can be stuck

to the ferrite core, each winding can be held down using ordinary sello-

tape.

Both windings must be wound in the same direction (see fig 1.0)

Winding L1 = 120 turns

(this winding can be marked with a sticky label)

Winding L2 = 43 turns.

1. Coils

Ø8mm

Cu 0.3mm

43T

120T

Fig. 1.0

MAKE SURE TO

SCRAPE OFF THE

LACQUER!

1 2 3 4 5 6 7 8 9 10 11 12

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Velleman-projects K7102 Assembly instructions Manuel d'utilisateur Page 5