I searched the forums and didn't find this mentioned; my apologies if it is a duplicate.

In the LED section of Vol. III, section 3.12 ("Figure 3.72: Safely driving an LED with AC: (a) from 24 VAC, (b) from 240 VAC.", pg 158 in the PDF), there is a circuit for driving an LED from a 240VAC source, and the text mentions a 12K ohm resistor, but the circuit drawing has a 1.2K ohm resistor.

 

If the led can withstand a peak current of about 26mA you can use a 12K resistor. Otherwise use 16K resistor.

 

Thanks. I just re-read that section and noticed that it has the capacitor in place, which means the 1.2K is correct for that drawing. D'oh! As Chief Wiggum would say, "Move along, nothing to see here."