The XNOR/XOR/NOT module can be patched as two NOT gates and one 2-input XOR gate, one NOT gate, one 2-input XOR gate and one 2-input XNOR/XOR gate, two 2-input XNOR/XOR gates or one NOT gate and one 3-input XNOR/XOR gate.
Gate one and two has two inputs, the third has one. The XOR out from gate one is being normalled to input 1 on gate two. The XOR out from gate two is being normalled to the single input on gate three (NOT).
• Width: 4 hp
• Depth: 50 mm.
• Power +12V:
14 mA @ 5V input signals
28 mA @ 10V input signals
• Power -12V: 0 mA
The circuitries of the RYO logic gate modules are directly modeled after the very earliest form of digital logic gate designs using resistor-transistor-logic (RTL) pioneered in the 1950s and used in computing equipment throughout the 50s and 60s. The Apollo Guidance Computer for instance used the same type of 3-input NOR gate design now found in the RYO NOR/OR module, although in vastly greater numbers.
The RTL circuit design gives the modules some interesting quirks thanks to the transistors threshold windows 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.