TekMate KH-80

My first Cyberdeck build (PC Case mod)

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This is my Cyberdeck (PC Case Mod) build. Using a 1980 Hitachi K-1000 B&W portable TV as the case and inspiration.

I knew I wanted to build a Cyberdeck and saw another one using an old portable CRT TV. So I started searching E-Bay looking for a TV to use. One of the first TV's I saw was this 1980 Hitachi K-1100 5" B&W portable TV. To me it just screams needing some cyberpunk treatment.

First thing to do decide if I'm keeping the B&W CRT. While the the TV does work its faint. If it was a color screen I might go through the process of fixing it but since its B&W I decided to gut the whole thing and just use the shell. In place of the CRT I did put in WaveShare's 5.5" AMOLED screen with a custom 3d printed mount. While it doesn't quite fit does look well in place of the CRT. Knowing that I couldn't use the small screen only I decided to add a 10" monitor mounted to the side of the case. The plan was to have the monitor fold down against the side of the case. While this does work with the current ball joint its not perfect and I'm looking at new type of hinges to give the look and fold I want.

After safely shorting the CRT I removed all the parts of this little TV and was left with a nice empty shell. Thinking that popping in a Raspberry Pi would make this too easy as I had all the space in the world. I decided to go with an ITX PC build instead as I had an old PC laying around already doing nothing. I tried to get the graphics card inside as well but just ran out of room with the motherboard and cooling and power supply. I still think I might be able to squeeze in a graphics card if I were to make a custom frame to hold all the parts and use a PCI-E extension cable.

Now that I had everything I wanted to have the keyboard be a part of the build and fold up to so the whole thing can be carried by the TV's handle. I found a Bluetooth folding keyboard that fit the looks and designed 3d printed mounts that can us the TV's shell screw holes. So the keyboard folds up and then an fold up along the case itself. Seeing that I have tuning knobs to replace or glue into place. I decided to remove them and put in USB sockets in their place. Right now I only have 1 USB 3.0 to use so I pressure fit the TV's tuning dial back into place until I have an idea for the dial itself or another idea to use that space. I did keep the Volume/Power knob and used a Arduino as a interface to turn the switch into a momentary switch to turn on the computer and possible other function later in the future.

For  power I am using a SilverStone Technology FX500 Flex-ATX PSU. I created a mount for it and it works but takes up too much space. In trying to save space I switched to a HDPLEX 250W passive GaN AIO(All-In-One) ATX Power Supply. The problem is the HDPLEX gets too hot then stops working correctly.  I switched back to the SilverStone power supply but paired down its wires that I don't need.


Arms that connect to the case to the keyboard tray.

Standard Tesselated Geometry - 471.86 kB - 09/18/2022 at 16:02



Clip that holds the keyboard when it is folded up and closed

Standard Tesselated Geometry - 19.61 kB - 09/18/2022 at 16:02



Plate that holds the folding bluetooth keyboard.

Standard Tesselated Geometry - 379.38 kB - 09/18/2022 at 16:02



Tripod mount/converter for the 10" monitor on the side of the case.

Standard Tesselated Geometry - 162.78 kB - 09/18/2022 at 16:01



Holds the 5.5 WaveShare display in the place where the CRT went.

Standard Tesselated Geometry - 157.89 kB - 09/18/2022 at 16:01


  • 1 × Hitachi K-1100 5" B&W Portable TV Used as the donor shell.
  • 1 × WaveShare 5.5 AMOLED screen. Replaced the 5" B&W CRT
  • 1 × 10" Portable Monitor for Laptop Bigger side Monitor
  • 1 × j5create USB 3.0 to 4K HDMI Display Adapter Used to power the 5.5" WareShare screen
  • 1 × SilverStone Technology FX500, 500W Flex-ATX 80 Plus Gold Power Supply

View all 13 components

  • TekMate KH-80 Video

    MostlyAwol6 days ago 0 comments

    Quick little video on the TekMate KH-80 showing a turn on and shutdown as well as some specs of the machine.

  • Power Switch Kept

    MostlyAwol09/22/2022 at 00:10 0 comments

    One of the major things I wanted to keep for this project was the Power/Volume switch to turn on and off the computer. To do this I had to make the toggle type switch to a momentary switch that a PC uses to turn on and off. I did this by using a Arduino micro and a 5v relay. While I could have used just a normal circuit  to this I figured I might need the Arduino if I wanted to convert the other knobs for various function as well.

View all 2 project logs

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odin conner wrote 09/23/2022 at 15:47 point


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