X-Git-Url: http://www2.svjatoslav.eu/gitweb/?p=physical.git;a=blobdiff_plain;f=misc%2FHeadphone%20hub%2Findex.org;fp=misc%2FHeadphone%20hub%2Findex.org;h=dd6d16286af752a3271e18826c39366684a5b9ba;hp=0000000000000000000000000000000000000000;hb=19af345819ef415d6685de55eb218367baa47b33;hpb=365f953bb4a379fb74f7ec49244484f75362c684

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+#+TITLE: Headphone hub
+#+AUTHOR: Svjatoslav Agejenko
+#+LANGUAGE: en
+
+* (document settings) :noexport:
+** use dark style for TWBS-HTML exporter
+#+HTML_HEAD: <link href="https://bootswatch.com/3/darkly/bootstrap.min.css" rel="stylesheet">
+#+HTML_HEAD: <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
+#+HTML_HEAD: <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js"></script>
+#+HTML_HEAD: <style type="text/css">
+#+HTML_HEAD:   footer {background-color: #111 !important;}
+#+HTML_HEAD:   pre {background-color: #111; color: #ccc;}
+#+HTML_HEAD: </style>
+
+* General
++ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
+  COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
+  DESIGNS AT YOUR OWN RISK.
+
++ This design is released under Creative Commons Zero (CC0) license.
+
++ Author:
+  - Svjatoslav Agejenko
+  - Homepage: https://svjatoslav.eu
+  - Email: [[mailto://svjatoslav@svjatoslav.eu][svjatoslav@svjatoslav.eu]]
+
++ See also:
+  - [[../../index.html][Other physical projects in this repository]]
+  - [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
+
+* Project description
+Simple hub that allows connecting up to 4 devices via headphone
+jack. For example single laptop or mp3 player can power up to 3
+headphones.
+
+[[file:make.png]]
+
+Schematic diagram:
+[[file:schematic.png]]
+
+Warning: All devices are connected in parallel. Make sure that audio
+producing device can handle combined load. See:
+https://en.wikipedia.org/wiki/Series_and_parallel_circuits#Resistance_units_2
+
+[[file:make,%202.png]]
+
+Device consists of body and cover that are held together by single
+screw at the center:
+
+[[file:cover,%202.png]]
+
+* Download
+
+- [[file:hub.FCStd][FreeCAD project]]
+
+
+Body [[file:body.stl][STL file]]
+[[file:body.png]]
+
+
+
+-----
+Cover [[file:cover.stl][STL file]]
+
+[[file:cover.png]]