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Tag Archives: electronics
rack: loaded and powered up
Here’s the test of the power supply and the power inlet of the patch panel.
Posted in construction, hardware Also tagged construction, enclosures, hardware, patch panel, power supply Leave a comment
enclosure and power supply (intermediate version)
Here’s photos of the intermediate version of the power supply in its enclosure. The front of the unit is at the top of the image, and the back is at the bottom. You’re also looking up at the the unit in these photos. Power switch and LED indicators are at the top left of the [...]
Posted in construction, hardware Also tagged construction, enclosures, hardware, power supply, preamp Leave a comment
power supply (early version)
The power supply has to provide, at a minimum, 0.7A @ +12V for the VL70m (power consumption measured at 0.6A @ 13.1V), and 1.3A @ +9V for the pitch-to-MIDI converters (GI-10: 0.26A @ 10.2V; GI-20: 0.8A @ 11.3V). Eventually, it will also provide bipolar power for the pre-amplifier (±12V or ±15V likely created using a [...]
pre-amp outline
The old version of io connected the output of the synthesizer directly to the amplifier. [see: figure] This wasn’t too much of a problem since, though unbalanced, the signal was low-impedance, line-level. There were, however, a couple of less desirable aspects to this. One was that the drivers (the woofer and the tweeter) would not [...]
rack wiring: 8-pin mini DIN angst