WF7M Homebrew Iambic Key
via eHam Post [ 04 March 2015 ]

An eHam Post by WF7M on his Homebrew Iambic Key somehow has its referenced Drawings / Photos missing.
Below the Post reprint, is my interpretation of the Key Design.


Original Post reproduced here, for reference.


My interpretation of the Key Design:

Pencil Lead Container:



Sample Dimensions of a Pencil Lead Container:



Pencil Lead Container, with Cap removed:



SMD Pushbuttons:



Placement of Hole drilled in Bottom of Container:



Locations of where to glue SMD Pushbuttons:



SMD Pushbuttons glued to Container:



Top View of Container, showing Pushbuttons and their Wiring:



Side View of Container with 1/2" x 1/2" [ 12.7 mm x 12.7 mm ] Lexan glue Positions:



Top View of Container with 1/2" x 1/2" [ 12.7 mm x 12.7 mm ] Lexan glue Positions:



Side View of Container with 1" x 1/2" [ 25.4 mm x 12.7 mm ] Lexan glue Positions:



Top View of Container with 1" x 1/2" [ 25.4 mm x 12.7 mm ] Lexan glue Positions:



Side View of Pencil Lead Container adhered to Wooden Base:



Top View of Pencil Lead Container adhered to Weighted Wooden Base:



WF7M did reply on eHam, on 10 March 2015, referencing his personal Web Page with the original Post and including the mentioned Graphics and Photos presented.

WF7M's Reply Photo is reproduced below, for comparison to my Concept Drawing.


WF7M's Reply Sketch is reproduced below, for comparison to my Concept Drawing.

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Created: 09.03.2015, Modified: 11.03.2015
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