1

(5 replies, posted in Atari)

Heyo!  Anyone ever catch one of these before?  I found it at a flee-market and picked it up thinking it was a regular cassette recorder.

It's got some funky adapters off the side-- this unit is missing the cord that would join that Atari 2600(?)

It does seem to play regular tapes!  Some noise though-- I suspect it needs a cleaning.

Anywho, is this worth anything to anyone?  Are these rare?  I had no idea they existed lol.  I'm likely gonna toss it on ebay, unless someone here can use it.

Cheers!

Thank you both for your thought!
Martin, can I ask what you use to program s3m modules?  Your post reminded me of "Rytmik"!  I think my brother has a copy, I'll have to snag it from him.

Gala-- I'd be very curious about a GBA specific tracker.  I didn't know there was a second nanoloop!  The example tracks are bumpin' though!  I'll have to give it a try :~)

I need to read up more on GBA hardware.  I'm having a hard time imagining what a GBA specific tracker would look like.  Research time!

Hi y'all!

When recording LSDJ tracks I tend to grab a DMG.  But more often than not, I write tunes using my ol' SP.  This has lead me to wonder what sounds may be unique to the Game Boy Advance/SP hardware-- hardware LSDJ may not be able to tap into.  Specifically, the GBA's "Dual 8-bit DAC"

"The new DACs can be used to play back streams of wave data, or can be used to output multiple wave samples processed/mixed in software by the CPU."

Would this be valuable in a tracker?  Are there ways to use this hardware with LSDJ?  What differences do you notice between DMG/Pocket/Color/GBA/SP sound?

4

(2 replies, posted in Sega)

Oh yes! I didn't plan to use those old boards. I was hoping to either fit a ballencer/charger inside the pack, or otherwise use a different charger meant for lithium-ion stuffs.

Not a lot of noise over here! Out of the 3.5mm jack you mean?

5

(2 replies, posted in Sega)

Hi peeps!

I'm usually over in the DMG section, but I have a friend who recently brought me back a Nomad and some busted battery packs. I'd followed 8Bitplus' guide, a few years ago, but the camera battery we put inside the pack no longer charges. I was hoping to replace it with new lithium cells. My dream scenario would include a voltage regulator, balancer/charger, alongside the batteries inside each pack.

Anyone attempt anything like this before? I'm not sure what to aim for voltage/amp hours wise. This guide uses a 7.4V 1500mAh Lipo which seems like a good bet. I'd love to be able to charge the pack with the standard nomad AC adapter though...

Any advice is welcome! Thanks in advance!

6

(9 replies, posted in Other Hardware)

No on the LED. I was able to get it on shorting a couple different combos of pins, but no sound.

The SK-10 doesn't have a headphone jack, just the speaker-- which as far as I can tell is working (wiring it up to a battery gets you the expected cracks and pops)

7

(9 replies, posted in Other Hardware)

Here's another album with a better camera

I've not thought about the power connector, but the multimeter is reading it properly, even when batteries are in, the correct pins are  7.5v/gnd.

Power is definitely getting to all the chips, I've traced it all over the board! Not sure where it's getting lost.

8

(9 replies, posted in Other Hardware)

Oh! In regards to the correct pinout, and for anyone reading this in the future, typical NPN transistors for CBE-- but the board requires BCE.
You have to twist the B&C legs around to match.

The darlington I got (TIP120) came BCE in the package though, so no bending necessary!

9

(9 replies, posted in Other Hardware)

Yup yup yup!

I threw whatever NPN I had laying around yesterday, but went out and bought the proper darlington this morning-- still to no avail! I've tried both means of power, but neither will get it going sad

I wired a switch in place of the old one, because the contacts were a little corroded (those are the red and white wires), I thought that might be the issue... Still nothing. Also, the trace for the via on the base of the diode gave, so you'll see there's a little bridge connecting it to the next point.
Oh boy.. What a mess.

These are lame pics, but I don't have my nice camera atm... I'll take better ones tomorrow if needed!

More here

Also, completely, totally, not even remotely related, but I had some stickers of yours I put on a lighter years ago. It's still one of my favorite things ever lol!

OKAY, anyway... Thank you for the help!!

10

(9 replies, posted in Other Hardware)

Hey all!

I've been tinkering with this SK-10 I picked up at a yard sale a few days ago. I was hoping to bend it this weekend, but instead have wrestling to get it to power on!

After trying fresh batteries and a 7.5v AC adapter, I opened it up. Nothing looked unusual, but after a nice cleaning I still wasn't getting any response from the keyboard.
I've followed the power voltage, and I'm pretty sure it's as it should be. I replaced the T1 Transistor with a similar NPN as suggested by this service manual because it was reading a bit funky-- no signs of physical damage though. (The manual is for a SK-1, but I can't find the SK-10, and the boards run relatively similar). All the caps look fine, and aside from a bit of resin on the CPU, everything looks brand new.

Any thoughts? Anyone see anything like this before? As far as I can tell, everything else seems to be working correctly.

I've done quite a bit of search and have found a few other forums with people experiencing similar problems, but never have I found any real resolution. Hopefully you guys can help me get this one working, any advice would be very appreciated! I'll be sure to update with any progress.

Thanks!

Welp... Yeah.. I'm not sure what to call it I suppose-- Rechargeable DMG with internal ArduinoBoy..?

That's a fair point about the charge level though. The indicator wouldn't tell ya much of anything until thirty or so minutes before it dies... I feel like adding an LED array to check it (think old PowerBook batteries) would be a bit overkill too..

I was thinking about using the jack! A couple of others mentioned it on other threads a while ago. I'd wanna run some tests to see if you could rig it for pass-threw charging though.

Thank you for the feedback!! I don't often play live, I'm excited to see different perspectives,

herr_prof wrote:

Would the battery also power the DMG? Otherwise I am not sure I see the point when the DMG can power the aboy.

Oh, yeah! Haha! The battery would power the Game Boy itself! It'd also power the arudino and other mods-- but the whole point is get rid of those pesky AAs!

I... Uh.... Wow my jar has never hit the ground so hard

14

(329 replies, posted in Nintendo Handhelds)

Whoa, this is sick!! *waits patiently*

Hello all! Long time no see!!

Now that I'm back home I'm hoping to whip up some new DMGs, and wanted to see if anyone else would be interested in a similar build/find out what features and options you're looking for!

Right now I'm working on an internal ArduinoBoy that'd have a Li-Ion inside (I've hacked out the old battery slots for space) along with a few other features: Internal MIDI ports, Pitchmod, Prosound, backlight (of course)-- but I'm curious as to what ya'll are looking for in a DMG, as I'd probably build a few anyway, and would love to get them in the hands of all you talented folk!

I built a few without the recharging feature last year, and had a blast! I also used 2.5mm jack to MIDI adapters, which I'm excited to ditch for full MIDI jacks. I have some cool marbled shells (like the one below) I'm thinking about putting them in, but I'll have some plane ones too!

I'm also planning to release some updated (and smaller) version of these DIY boards I've been printing. I've been trying to track down some SMD optocoupler, and thing I might have finally found some decent ones! And of course the tiny Pitchmod ones too are getting a face-lift!

Anywho.. Thanks for reading! I'm always grateful for all the board has to offer!

TLDR: What mods do you you look for in a DMG? I'm hoping to make a few and sell 'em cheap-ish.

Those sound incredibly cheap! How awesome! How are you keeping production so cheap?! buying in bulk!

ArduinoBoys for the masses!! It's too cool!