Dual discrete transistor NAND/AND logic gate

Two discrete NAND/AND logic gates.

The resistor-transistor based circuit design gives the module some interesting quirks thanks to the transistors thresholds and tolerances when playing around with different amplitudes, waveforms and frequency rates of the incoming signals, making it fun and useful to explore beyond typical logic gating duties, for example as an audio waveshaper/distortion.

It can be patched as two NOT gates,
one NOT gate and one 2- or 3-input NAND/AND gate,
one 2-input NAND/AND gate and one 2- or 3-input NAND/AND gate
or one 4-input NAND/AND gate.

Gate one has three inputs, the second has two. The inputs on gate one is normalled in a 1>2>3 fashion for efficient cable and time-saving patching. The inputs on gate two has also been normalled in a 1>2 fashion, with the AND out from gate one in turn being normalled to input 1 on gate two.

• ? mA +12V
• 0 mA -12V
• 0 mA 5V

Available as an assembled Module and as a DIY project.

No info about availability.