Ugh, modern crap.
This Korg i2, or some such stupid name, has a busted backlight. I think. Either way, I've replaced the backlight and I hope that was the problem, because I can't find any specs for the dang thing, and the complete service manual that I have is pretty much useless. All it has is scratchy little photocopied diagrams of where the screws are...
Pretty common situation.
Tuesday, December 6, 2011
Sunday, October 9, 2011
I'm working frantically right now to put together all the details for a little PulsewaveSF soiree at the East Bay Mini Maker Faire - besides the usual performances and hands-on demos of chip gear, we're setting up a diy table where I'll be most of the day, teaching basic gameboy modding. Check out those links for the address and times, and swing on by - it's on October 16th in Oakland, CA.
About a year ago I built an Arduinoboy Mini, as more or less as originally designed by trash80, based on the instructions he provided here:
http://8bc.org/forums/viewtopic.php?pid=167545#p167545
It has served me exceedingly well, providing copious amounts of MIDI data to my Gameboy's inputs on a daily basis while being rough-housed on the road - until the game boy link cable that I used (some 3rd party knockoff) finally took a dump right before a show last week.
The godawful things have six tiny little crimp pins that have a nasty habit of both allowing their wires to escape, and of falling out of the plastic housing. A major known issue with creating Arduinoboys is that many link cables lack a pin to carry 5V power from the gameboy into the Arduino, requiring an extra power supply. It is possible to move the wires around, but it's fiddly and often results in destroying a pin, making the cable useless.
You can see the issue here, I'm sure.
Having diagnosed the problem, I think I'm going to cannibalize this whole unit and rehouse the perfectly functioning guts in a different case with a new, better cable. It will be shipped off with the green Gameboy featured in my last post. I'll need to build a new arduinoboy soon for stage use, but I've got a bit before that will become absolutely necessary.
About a year ago I built an Arduinoboy Mini, as more or less as originally designed by trash80, based on the instructions he provided here:
http://8bc.org/forums/viewtopic.php?pid=167545#p167545
It has served me exceedingly well, providing copious amounts of MIDI data to my Gameboy's inputs on a daily basis while being rough-housed on the road - until the game boy link cable that I used (some 3rd party knockoff) finally took a dump right before a show last week.
The godawful things have six tiny little crimp pins that have a nasty habit of both allowing their wires to escape, and of falling out of the plastic housing. A major known issue with creating Arduinoboys is that many link cables lack a pin to carry 5V power from the gameboy into the Arduino, requiring an extra power supply. It is possible to move the wires around, but it's fiddly and often results in destroying a pin, making the cable useless.
You can see the issue here, I'm sure.
Having diagnosed the problem, I think I'm going to cannibalize this whole unit and rehouse the perfectly functioning guts in a different case with a new, better cable. It will be shipped off with the green Gameboy featured in my last post. I'll need to build a new arduinoboy soon for stage use, but I've got a bit before that will become absolutely necessary.
Saturday, September 24, 2011
I'm working on a commissioned gameboy mod in exchange for artwork by the fantastic pixel (and other ) artist KeFF. He requested something that, to my knowledge, has not been done before - two 1/4" jacks crammed into one original gameboy. The challenge is that a single 1/4" jack is generally squeezed in where the power supply is placed in a stock gameboy - then a ribbon cable is installed, relocating the power supply to the opposite side, in a smaller cavity. To install two 1/4" jacks, both of those spaces must be made available.
My solution:
By splitting the power supply in half and connecting the two halves with ribbon cable, enough room is made on each side for a full length 1/4" jack. It's definitely a squeeze, but everything functions.
As a bonus, the jack on the left is wired in stereo, allowing the option of a stereo cable, or a mono cable (grounding out the right channel, which can be accessed via the other jack).
Still to be done - wiring up the variable speed control and a switch, which I'm honestly not yet sure where to put. Those jacks take up a lot of space.
My solution:
By splitting the power supply in half and connecting the two halves with ribbon cable, enough room is made on each side for a full length 1/4" jack. It's definitely a squeeze, but everything functions.
As a bonus, the jack on the left is wired in stereo, allowing the option of a stereo cable, or a mono cable (grounding out the right channel, which can be accessed via the other jack).
Still to be done - wiring up the variable speed control and a switch, which I'm honestly not yet sure where to put. Those jacks take up a lot of space.
Thursday, September 22, 2011
Worming my way towards that delicious pile of goodies in the last post. Also trying to clean out my office.
These EQs have been sitting in the "fix-it" pile since 2007. What's wrong with them? Nothing, as far as I can tell. The Yamaha actually sounds quite nice, and has sockets for input/output transformers on the back.
These EQs have been sitting in the "fix-it" pile since 2007. What's wrong with them? Nothing, as far as I can tell. The Yamaha actually sounds quite nice, and has sockets for input/output transformers on the back.
Monday, September 12, 2011
I've had a pleasant windfall of new toys thanks to an old biology teacher of mine. Thanks to him and another certain blogger who reminded me that people actually sometimes read what I write here, you can expect a windfall of new posts about it all.
That is, after I get through the pile of goods (and bads) that have collected in my office over the last two years. I've come to realize that at the University where I work, we've had a major purge every month of the 7 years that I've been there, and there's no sign of it stopping.
Today I finally opened up a multimeter that I found in storage and which has been sitting in my office for at least three years. Now I love a good crystaline structure as much as the next guy, but when battery corrosion has reached this point, I'm usually ready to let the affected piece of gear call it a day.
Close inspection reveals that almost every component in the thing is affected by the corrosion - not much to salvage, save some beautiful Bakelite knobs. Something of a shame I'm afraid.
Sunday, March 6, 2011
Five months of events.
Well, as you might expect, a lot has happened since October. In these last five months, a huge amount of music has been released in which I have participated, some of it somewhat unexpected. I hope you'll excuse my break from the usual technical drudgery for a bit of advertisement. I promise the rest of the post is filled with photos of cool stuff.
Tensegrity Nine, my defunct J-pop/Folk-rap duet with Peter Lim, finally released our posthumous album sugoi! All My Pretty Ones released an excellent little semi-live EP recorded at the Maybeck Recital Hall in Berkeley, CA. Radiation City, a Portland based band centered around members of Spesus Christ (of which I am no longer a member, sadly), asked me to record some trombone for their album The Hands That Take You, which is now available from Apes Tapes.
I'm also super excited to announce that my new chip-rock duet with Lizzie Cuevas, The Glowing Stars, has released a demo, and has a first show scheduled opening for Anamanaguchi and Peelander Z in San Francisco on April 7th. No doubt this will result in many more posts related to 8-bit modifications and building unusual midi interfaces over the next month as we prepare.

Probably the biggest project I've had in the works is my own album Rodent to Rodent - a double album released with my dad, who's original 1984 album Rodent to Rodent was never released, until we met two years ago and I created my own version. There's more of the story available at the Rodent to Rodent blog, so I won't get too much into detail on that, but to satisfy your craving for weird technical happenings, here's the lowdown on some of what was done to make our big presentational Rodent to Rodent show happen.

My wife was kind enough to help me prepare these custom grille cloths for the guitar cabinets we used at the show. They feature the Rodent to Rodent logo cut out of light black denim, whip-stitched onto burlap. The larger frame (for my Sunn 4x12) was custom built, as the cabinet comes from an era of Sunn cabinets which originally used thin black metal grilles (long lost to the mists of time, in the case of my cab).
Beyond the visually creative element of putting the show together, there were some venue related obstacles to overcome. Luckily we were able to survive the dangers of a weak power system, which was a serious concern, but solving the next problem required some more foresight.
That is a roughly six foot tear in a rather large red curtain. It was exacerbated by its location on the curtain near the draw rigging. Since this type of curtain track simply pulls on the center end of each curtain, any attempt to close the curtain simply tugged on the separated section and ripped it further.
In December of last year, I travelled to the venue to remove the curtain personally, folded it up, loaded it into my truck, and enlisted the assistance of one of the costume designers at my the theater costume shop at work to sew and reinforce the curtain, then replaced it with the help of Jonathan Mann, who hosted the final event.

As you can see from this photo taken atop a 16 foot ladder, the previous person to hang the curtain had some creative ideas about rigging and weight distribution. Although the number of chains and eyelets did not quite match up ultimately, we were able to clean up much of the existing mess. Of course, we never touched the other side of the curtain, so hopefully there are no similar problems. I hear they may be replacing the entire system sooner or later, but after a successful concert, I can personally wash my hands of the whole affair.
I have also recently been performing semi-regularly with the most excellent Family Crest, including at their album release show for The Village, on which I played accordion (almost 3 years ago). While of course reprising my Accordion role in the band, I have also become something of a hypeman and antics generator. As a result, I've been doing some work on accordion pickups, wireless systems, and of course, trick lighting.
Last night at a sold out show at The Bottom of the Hill in San Francisco, I debuted this floor tom with a switchable, battery operated light. While somewhat obviously a $10 Home Depot affair, it was nonetheless highly effective in performance. The only unfortunate bug is the placement of the switch, which is prone to accidental engagement - an issue that presented itself almost immediately into the first song of the night's set.
The placement of all the hardware is dicated by the needs of preservation, as the drum is in fact part of a matched vintage Ludwig kit, which may some day be rebuilt and returned to stock. As such, anything mounted to the inside or outside of the drum must be mounted in existing holes. The aforementioned switch replaces the unused batter head mute, while the light itself is mounted on elongated bolts mounted in place of the resonant head hardware.
Of course, I also learned some lessons about trusting untested rechargeable batteries...
Tensegrity Nine, my defunct J-pop/Folk-rap duet with Peter Lim, finally released our posthumous album sugoi! All My Pretty Ones released an excellent little semi-live EP recorded at the Maybeck Recital Hall in Berkeley, CA. Radiation City, a Portland based band centered around members of Spesus Christ (of which I am no longer a member, sadly), asked me to record some trombone for their album The Hands That Take You, which is now available from Apes Tapes.
I'm also super excited to announce that my new chip-rock duet with Lizzie Cuevas, The Glowing Stars, has released a demo, and has a first show scheduled opening for Anamanaguchi and Peelander Z in San Francisco on April 7th. No doubt this will result in many more posts related to 8-bit modifications and building unusual midi interfaces over the next month as we prepare.
Probably the biggest project I've had in the works is my own album Rodent to Rodent - a double album released with my dad, who's original 1984 album Rodent to Rodent was never released, until we met two years ago and I created my own version. There's more of the story available at the Rodent to Rodent blog, so I won't get too much into detail on that, but to satisfy your craving for weird technical happenings, here's the lowdown on some of what was done to make our big presentational Rodent to Rodent show happen.
My wife was kind enough to help me prepare these custom grille cloths for the guitar cabinets we used at the show. They feature the Rodent to Rodent logo cut out of light black denim, whip-stitched onto burlap. The larger frame (for my Sunn 4x12) was custom built, as the cabinet comes from an era of Sunn cabinets which originally used thin black metal grilles (long lost to the mists of time, in the case of my cab).
Beyond the visually creative element of putting the show together, there were some venue related obstacles to overcome. Luckily we were able to survive the dangers of a weak power system, which was a serious concern, but solving the next problem required some more foresight.
In December of last year, I travelled to the venue to remove the curtain personally, folded it up, loaded it into my truck, and enlisted the assistance of one of the costume designers at my the theater costume shop at work to sew and reinforce the curtain, then replaced it with the help of Jonathan Mann, who hosted the final event.
As you can see from this photo taken atop a 16 foot ladder, the previous person to hang the curtain had some creative ideas about rigging and weight distribution. Although the number of chains and eyelets did not quite match up ultimately, we were able to clean up much of the existing mess. Of course, we never touched the other side of the curtain, so hopefully there are no similar problems. I hear they may be replacing the entire system sooner or later, but after a successful concert, I can personally wash my hands of the whole affair.
I have also recently been performing semi-regularly with the most excellent Family Crest, including at their album release show for The Village, on which I played accordion (almost 3 years ago). While of course reprising my Accordion role in the band, I have also become something of a hypeman and antics generator. As a result, I've been doing some work on accordion pickups, wireless systems, and of course, trick lighting.
Of course, I also learned some lessons about trusting untested rechargeable batteries...
Wednesday, October 20, 2010
tiny things
There's some great music being made on this old 8bit gear out there. The J. Arthur Keenes Band and NESMetal immediately come to mind. I may
Tiny things and also large things. Re-wiring the beautiful old rooms at the music building at the unviersity to take audio again. End result will be 60+ balanced channels traversing our major rehearsal and recording rooms, plus ethernet and speaker connectivity. The panels are in and we're installing stuff. It's very satisfying to return functionality to these facilities, let me tell you.
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