Archive for Electronics

SNES Flash cartridge

A few years ago I purchased an FC Twin and went on a NES and SNES cartrige buying spree, but a lot of the games I really wanted (RPGs, mostly) were incredibly expensive. I also wanted to play some of the Japanese RPGs and platformers that never made it over to the states, but those required a Japanese SNES and any ROMs that had been translated to English required an emulator.

As much as I love emulators, they just aren’t the same as playing on the real hardware. I have a PC hooked up to my TV that I’ve used with NES and SNES emulators in the past, but I’d much rather use the FC Twin or my SNES if I’m going to sit down and do some serious playing. For years I wished I could buy a flash cart for my SNES that worked the same way my Gameboy, GBA, and DS flash carts did.

It took some hunting, but there are a few dark corners of the interweb that provide just such a device. The one I found is made by Tototek. It works with about 90% of the SNES ROMs out there, and more importantly, works with homebrew and modded SNES ROMs, which includes the fan-translated RPGs. The device can also copy SNES carts for creating your own ROMs, and is capable of copying and writing save games to original SNES carts. The only ROMs it won’t work with are ones that required additional chips. Super Mario RPG, Mario Cart, Pilotwings, Star Fox, Yoshi’s Island, and the Mega Man X games are just about the only “good” games that fall into this category. I already own cartridges for all of these, so this really wasn’t an issue for me.

My only gripe is that the flasher requires a parallel port, so any laptop users are out of luck. Luckily I just switched from a laptop to a desktop, so this isn’t an issue for me. It might make using this thing a little tough in another 4 or 5 years, though.

SNES Flash Cart 2 SNES Flash Cart 3 SNES Flash Cart 1 SNES Flash Cart 4

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Ray Wilson ADSRs

A couple of years ago I built a modular synthesizer based on circuit designs from Ray Wilson and Ken Stone. Last summer I built an additional synth cabinet with the intention of adding a bunch of new modules from several other DIY synth gurus. For some reason it’s taken me almost a year to get motivated enough to start building modules, but the first two are finally ready. These are actually Ray Wilson circuits that I couldn’t fit in the first cab, but I’m short on envelope generators so I decided to build these first. I’ve also got a Ray Wilson sequencer that I’m hoping to finish next. After that it should be all new circuit designs, including quite a few of Thomas Henry’s circuits.

ADSR 1 ADSR 2

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Juno 60 MIDI mod

I got a ridiculously good deal on a Juno 60 synth over the holidays. For an instrument that’s nearly as old as I am it’s in surprisingly good shape, but it’s lack of MIDI soon became a problem. I’m a fairly poor synth player, so I rely heavily on MIDI so that I can program parts that I’d never actually be able to play in real life. No MIDI left me stuck with my rather limited abilities whenever I wanted to use the Juno in a song.

The Juno 60 was released about a year or so before MIDI became the standard and instead has Roland’s own MIDI-like DCB protocol. There have been several DCB to MIDI adapters released over the years, but they’re all big clunky boxes. If I was going to add MIDI to my Juno, I wanted it to be built into the synth and not in some external box I would have to lug around.

After a little hunting I found Engineers@Work, a company in the Netherlands that had exactly what I was looking for. They sell an add-on board that can be soldered into the existing DCB wiring to convert the DCB signals to MIDI. It even fits into the same hole as the old DCB connector so I didn’t have to drill any new holes in the Juno.

Juno MIDI retrofit 2 Juno MIDI retrofit 1 Juno MIDI retrofit 3

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