Ok, This is not quite the VERY first test of my test rack, but the first worth capturing on video. My very first successful test involved turning on the power supply to watch my 2hp MIDI module light up and test its USB connectivity. I was able to get it recognized in my audio software of choice (Propellerhead Reason) and send a signal to it which generated a promising lightshow from the CV and GATE LEDs on the unit. The second test was sending a trigger signal from my Roland TR-08 to the O’Tool Oscilloscope to confirm I could see the signal. While clearly critical tests, they are not quite as exciting as seeing my first protean ‘patch’ that involved a module that I had assembled myself, and that actually involved more than one module (power supply not considered).
Today I hooked up the TR-08 to the test rack’s freshly added Erica Synths Pico Input and Output, David Jones O’Tool oscilloscope, and my home-built Pharmasonic SYS-700 Mixer. This allowed me to confirm that a signal was getting through the Mixer and that it was being attenuated by the mixer as I adjusted the knobs. Sweet success! I feel ready to crank down the screws and nuts on my first module and call it done!
Here is a patch diagram of what was tested:
The Roland TR-08 output was fed into the Pico Input, which was fed into the SYS-700 Mixer. Adjusting the knob circled in red on the mixer attenuated the signal being fed into the O’Tool. While not seen in the video, I later found more patch cables and was able to run the O’Tool output to the Pico Output. And yes, the S&H and the Mixer are swapped in the video from the diagram above.