transistors. They do not have any polarity.
Solder the remaining 100 ohm transistors (R3- R10) to
their pads. Solder C1. It has no polarity, either. Solder IC1,
noting where pin 1 is. Solder the battery clip (Figure 5).
Put in the CR1225 battery, and the earring should
start to flash. The battery should power the earrings at
least eight hours. I ran a one minute statistical analysis of
both units, and the average draw is about 2-3 milliamps.
December 2014 41
■ FIGURE 6.