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  • 8-13-20:

  • All parts printed and ready for a test tonight! Some parts are in need of minor changes such as; hex nut pocket hole width, bolt head pocket depth, and other minor things to make assembly easier. Photos updated as well. Once i get some photos from the...
  • Slow mode counter circuit

  • There are designs on the net for this, but they all seem based on a design with a fundamental error. They asynchronously reset the 8-bit counter when it reaches 207.  This means it cycles through states 0 to 206, then very briefly becomes state...
  • Adding Sockets for External Connections

  • (Original post date: 06/03/16)Even though I ended up constructing a brand new front panel for the toy piano for this project, the rest of the enclosure of the vintage toy synth will be using the existing piano enclosure. Apart from the front...
  • [E1][M] 8 in 1 out hotend

  • Or 9 in 1 out if the centre is used. I know it looks complicated, but it's not complicated. Modelling So, as I've read other engineers do, I wanted to see how far I could push the concept. The Palette 3 Pro had more inputs than the Palette 2 and...
  • SID File Structure

  • YES. I know its been two years since my last blog, but this project ain't dead. I was just busy dealing with College and bagging myself a Bachelor in Electrical Engineering. Which i now hold!! So hopefully i can revive and work on this project proper...
  • Mini-PC host

  • Most of the headache seems to be installing an OS. This is easy with a ready-to-go PC with a CD ROM or even floppy disks, but my Futro board did not have them. I decided to buy a small PC with Windows 98 already installed. There were some for £102,...
  • The Audio Interface

  • The Audio InterfaceConnecting the microprocessor (uP) to an 8 ohm speaker and to an 8 ohm speaker used as a microphone is tricky. Tricky if you want it clean (no PWM in the out put) and simple (i.e. low part count and garden variety components).Op AmpsThe...
  • Genesis V0.5 Documentation

  • Genesis V0.5 exhibits the following changes from Genesis V4The Tracks cable carrier is repositioned and now supported with teenuts and long M5 screws, just like on the GantryThe Z-axis motor mounting bracket has been made thicker and the holes for the...
  • V9958 and V9990 Video cards

  • Yamaha V9958 Video Display Processor The Yamaha V9958 is the successor to the V9938 and TMS9918 that were commonly used in the MSX computer line with the V9958 appearing in the MSX2+. It has the following specifications: VRAM: 128 KB + 64 KB of expanded...
  • The magazine article

  • Micro Cornucopia number 32, (October/November 1986) Public Domain 32000 By Dave Rand and George Scolaro 72 Longfellow St. Thousand Oaks CA 91360 (805) 493-1987 World’s Cheapest Unix System Contents Public Domain 32000: The Hardware How to put together...