Velleman projects K2655 Assembly instructions - Manual (Page 12)

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Capacitor C3 takes care that the dog does not go on barking as long as the TRIG contacts are closed. To
enable barking the whole time (e.g. with smoke detection), you may replace capacitor C3 by a wire link.
With a 4 ohm horn-type loudspeaker, the volume usually will appear sufficient. Should you still want a more
powerful amplifier, you may connect it to AF OUT. Pay attention to the polarity! Fit a 100nF MKM capacitor
for C16. If you are sure that the power amplifier already has a capacitor at the input, then you may fit a wire
link for C16.
Test & use
H2655IP'1_rev3.pub
page 12 Friday, December 07, 2012 16:58