Second Life of MFM Hard Drives - Iambic Telegraph Key

About: Partido Geozentrista de los Martianos Intruderz

timelesson.blogspot.com/2010/02/second-life-of-dead-mfm-hard-drives.html

Do you remember a MFM hard drives? Not too fast, but very large - 20 Mb in the 5 inch rack, it was a something special! Times gone and those beautiful drives decided to rest in peace. In peace? No way!

One note - if you don't know wha-da-heck is Iambic Key, visit Wiki: en.wikipedia.org/wiki/Telegraph_key As for me, this key is my way to communicate World. Our Old Good World.

Step 1: Extracting Heads From Dead Drives

There are best-of-the-best bearings inside. Because it is.

Step 2: Cut Off Fag End


Step 3: Breadboarding and Making the Plastic Base.

Breadboarding - making something using wife's bread board en.wikipedia.org/wiki/Breadboard. In my case board was slightly rustic.

Step 4: Assembling and Assembled Views

 

Step 5: Comunicating Using New Keyer






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    7 Discussions

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    wcgems

    5 years ago on Step 5

    What are the pins on the front from? Is the speed adjustable? The two wire on top, what are the connected to on the top and bottom?

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    jeff-oAndy UU1CC

    Reply 8 years ago on Introduction

    Hey, that sounds really nice!  Of course I have no idea what the message was.  ;)