GL-1A

NAND / NOR logic module - Scratch Built

GL-1A was the first logic module that I designed. It can be used for AND/NAND or OR/NOR depending on the IC you choose to install. The schematic for GL-1A can be found here.

It would be helpful to add a small transistor amplifier or comparator to the inputs, since this design assumes you have proper gate voltages at the inputs. If you're certain that your gates will be strong enough (a little over half the supply voltage), than everything should work fine. If you're using 5V gates, you'll definitely need to amplify the input signals

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FD2040

Frequency Divider - Blacet Labs

More info to come. Until then, see the Blacet Labs website