In "A Low Cost DDS Function Generator" [November 2005, p 40], the maximum supply voltage should be 20 V, not 30 V as indicated.

In Figure 1 of "Not Another Touch Key" [November 2005, p 28], Q1 and Q2 are 2N3904 transistors as shown in the parts list, not 2N43904 as shown in the schematic diagram.