- on Audio/Video/Photography
- Published in issue 10/2009 on page 66
Easy to operate thanks to AVR micro & LCD
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October 22, 2009
Regrettably a few errors have crept into the circuit diagrams in Figures 1 and 2. In Figure 1, components K1 and
In Figure 2, the relay contacts are drawn incorrectly in their non-actuated state, which suggests all inputs are interconnected. Also, two miniature chokes are missing in the +12 V and –12 V supply lines.
The electronic version (.pdf) of the article contains the corrected diagrams.