Atari 400 multi-port doodad

[Smokeless Joe]

Ripped-off from Inspired by Mytek's Transkey-II Stereo Interface, I created the Atari 400 multi-port doodad:

 

 

 

This provides a ps/2 port for a Transkey-II keyboard, an S-Video port for the UAV, and a 3.5mm audio out for any of the various UAV Audio Companions (stereo/mono switchable via jumper).  All the connecting wires fit out the hole for the RF cable because I didn't trust myself to modify my Atari 400 case.  Here is the physical board, doing it's thing, with and without cables attached:

 

 

These are the parts used: 

• Custom board: OSH Park
• Mini-din 6-pin socket: Jameco 11945
• Mini-din 4-pin socket: Jameco 140791
• 3.5mm audio jack: Jameco 2161553
• straight single headers: Jameco 160882 (breakaway, only need 2 pins but who doesn't need more of these?)
• right angle double headers: Jameco 203932 (breakaway, makes two 5x2 right angle headers)
• shorting jumper: Jameco 19141
• female crimp pins: Pololu 1930
• crimp connector housing, 2x5 pin: Pololu 1913
• crimping tool: Pololu 1928
• 26 AWG wire: Amazon

 

It works!  Future improvements could include a 3d printed case and maybe a shielded 9 wire cable instead of loose 26 AWG wires.

Edited August 16, 2020 by Smokeless Joe

[+Stephen]

Nice work!  Thanks for not cutting up a 400 case   I'll do all kinds of internal mods, but it just kills me to drill / cut into a case for some reason.

[xrbrevin]

would look good in a 3d printed case - in beige and orange!! ?

[gilsaluki]

Now, that IS a name for a device that I actually understand, "Doodad".  I totally don't understand how some of these very talented people come up with the names for their devices.  Most of the names look like those weird new drug names.  Get feisty.