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LCS-1M - A Low-Cost Hobby Oscilloscope
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| Step 6 - Diodes and LED |
Now insert the diodes. Make sure you put them in in the right directions - diodes are polarized, and the
circuit won't work if you put them in backwards (see picture for reference - the black ring indicates the
negative end). Diodes are also sensitive to excessive heat, so try to solder them quickly and then
immediately remove the soldering iron again.
The power indicator LED (light emitting diode) - between the two blue screw terminals - should be placed
if you plan to use the scope without enclosure. Otherwise leave this connector open or put in a jumper
header (like shown in the picture) so you can later hook up a panel-mounted LED. Again, the LED is
polarized so you'll have to insert it the right way around (see "+" label; the LED's "+" pin is the longer one).
circuit won't work if you put them in backwards (see picture for reference - the black ring indicates the
negative end). Diodes are also sensitive to excessive heat, so try to solder them quickly and then
immediately remove the soldering iron again.
The power indicator LED (light emitting diode) - between the two blue screw terminals - should be placed
if you plan to use the scope without enclosure. Otherwise leave this connector open or put in a jumper
header (like shown in the picture) so you can later hook up a panel-mounted LED. Again, the LED is
polarized so you'll have to insert it the right way around (see "+" label; the LED's "+" pin is the longer one).
