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connectable

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  1. Hi, I read with interest the comments above on stand-alone MIDI synth using Yamaha daughterboard. To answer a couple of comments: 1. Yes, it's a home-made PCB. These days I can make one in less than 30 minutes, once the schematic/track is laid down in Eagle. Naturally, I don't reflect the time spent in terms of price in my estimate for the total cost of my project. For those who haven't had a go yet, I urge you to try - pick a simple project and use one of those 'boil-in-a-bag' etch solutions to start with. Once you get hooked, then you can lash out and buy a bubbler tank etc. 2. The MIDI OUT connection on the Yamaha card (pin 8) is not used in my design, but I always tend to take potential future use into account. The last comment mentions that the connection should go via a resistor and the MIDI loop to a resistor tied to +5v and this is quite correct. I tend to sprinkle extra GND and power points on my PCB's these days, because I found that I tended to forget stuff and ended up having to solder GND connections directly to the foil on the PCB. The juxtaposition of a GND connection to the MIDI OUT pin is just sloppy on my part! I urge anyone considering hooking up a Yamaha board in a similar way to go ahead. I was so pleased with the result, I ordered another board and built a second unit. The sound of two units in parallel is absolutely awesome. Regards from Joe. Ref article: http://www.joebrown.org.uk/wp/?p=3124 Make a Yamaha Synth for less than £25.00
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