6
Construction
q
D1 : 1N4148 or eq.
q
D2 : 1N4148 or eq.
3. Diodes.
Watch the polarity !
D...
CATHODE
This infrared transmitter can be used to remotely operate our
preamplifier (K4100) or tuner (K4500). More over it can be used
together with the universal 15-channel receiver (K6711) and/or the
one-channel receivers (K6712/13). For use with those last two kits,
the transmitter has a universal keyboard, one of its keys even allows
you to reset all the outputs at once. Another so-called safety key
allows you to preserve the memory content (or stations in the case of
the tuner), in order to avoid unwanted overwriting. Not only its possi-
bilities but also the aluminium housing and a special VELLEMAN
tactile keyboard make this Build-it-yourself remote control unique.
q
J
1. Jump Wire
q
R1 : 1K8 (1-8-2)
q
R2 : 1K (1-0-2)
q
R3 : 33 (3-3-0)
q
R4 : 68
1/2W
(6-8-0)
q
R5 : 1
1/2W
(1-0-B)
2. Resistors
R...
q
IC1: 20P.
4. IC socket,
Watch the
position of the notch !
Содержание K4101
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