2, 4, 8, 32, 64, 128, 256, 512, 1024, 2048, 32768 Hz Oscillator A low frequency xtal-controlled oscillator/divider using CMOS CD4060BE and a salvaged 32,768 Hz "watch" crystal. The low resonant frequency (32KHz) crystal, is physically very small! (2mm dia x 6mm long) From researching: A quartz crystal resonator, used as the timekeeping component in quartz watches and clocks, is formed in the shape of a tuning fork. Most quartz clock crystals vibrate at a frequency of 32,768 Hz. Outputs from the 4060 will provide the following frequencies: 2, 4, 8, 32, 64, 128, 256, 512, 1024, 2048 Hz Note: A CMOS 4060B (buffered) worked fine, but the pin/function(?) equivalent 74HC4060 high speed TTL compatible chip was erratic in oscillation....unuseable! CMOS cookbook/Don Lancaster explanation on CMOS xtal oscillator circuits.