Analog switch 4066 ------------------ 14 13 12 11 10 9 8 +------------------------------------+ | +5V . . | | | | | | ... . o o-+ o o-+ | | . ......./ / | | . / /. | | ./ . | | / /...... . | | +-o o / . ... | | | | +-o o . . | | | | | | . . GND | +------------------------------------+ 1 2 3 4 5 6 7 Author: Marc-Jano Knopp on 97/1/4 Source: http://mjk.c64.org