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Below is a list of the most recent file uploads. See the gallery of new files for a more visual overview.
- 03:22, 6 February 2008 JA.Davidson talk contribs uploaded File:NBS 120 Set.jpg ({{Information |Description=Sketch of Crystal Set |Source=NBS |Date=1922 |Location=Washington DC |Author=US Gov. |Permission=None or expired copyright |other_versions= }})
- 22:46, 29 September 2007 JA.Davidson talk contribs uploaded File:CrystalRadio.jpg (Crystal radio wiring pictorial based on Figure 33 in Gernsback's 1922 book "Radio For All" (copyright expired) with 'Aerial' changed to Antenna by me.)
- 02:46, 24 September 2007 JA.Davidson talk contribs uploaded File:Relay Contacts.JPG (Contact points of an antique telegraph repeater relay.)
- 02:45, 24 September 2007 JA.Davidson talk contribs uploaded File:Pony Relay.JPG (Photo of antique telegraph repeater relay.)
- 19:49, 29 August 2007 JA.Davidson talk contribs uploaded File:Ferromag Matl Magnetized.JPG (Sketch representing ferromagnetic material magnetic domains when magnetized. ~~~~)
- 19:45, 29 August 2007 JA.Davidson talk contribs uploaded File:Ferromag Matl Sketch.JPG (Diagram representing magnet domains not magnetized ~~~~)
- 21:12, 21 August 2007 JA.Davidson talk contribs uploaded File:Bal Arm.JPG (Reverted to earlier revision)
- 21:12, 21 August 2007 JA.Davidson talk contribs uploaded File:Bal Arm.JPG (Reverted to earlier revision)
- 21:11, 21 August 2007 JA.Davidson talk contribs uploaded File:Bal Arm.JPG (Reverted to earlier revision)
- 21:09, 21 August 2007 JA.Davidson talk contribs uploaded File:Bal Arm.JPG (Reverted to earlier revision)
- 21:06, 21 August 2007 JA.Davidson talk contribs uploaded File:Bal Arm'.JPG (Diagram of a balanced armature sound transducer with current in coil)
- 21:03, 21 August 2007 JA.Davidson talk contribs uploaded File:Bal Arm.JPG (Reverted to earlier revision)
- 21:03, 21 August 2007 JA.Davidson talk contribs uploaded File:Bal Arm.JPG (Reverted to earlier revision)
- 20:59, 21 August 2007 JA.Davidson talk contribs uploaded File:Bal Arm.JPG (Diagram of a Balanced Armature Sound Transducer in balanced state)
- 20:01, 21 August 2007 JA.Davidson talk contribs uploaded File:Bal Arm'.JPG (Diagram of a balanced armature transducer with current)
- 19:57, 21 August 2007 JA.Davidson talk contribs uploaded File:Bal Arm.JPG (Diagram of a balanced armature transducer in balanced state)
- 06:10, 4 February 2007 JA.Davidson talk contribs uploaded File:Earpiece.jpg
- 05:53, 4 February 2007 JA.Davidson talk contribs uploaded File:Brandes Superior Matched Tone c. 1919-21.jpg (Photo of my old headphones)
- 05:13, 4 February 2007 JA.Davidson talk contribs uploaded File:Maggie.jpg (Made this photo from an old picture.)
- 05:44, 20 December 2006 JA.Davidson talk contribs uploaded File:RadioWaves.jpg (Copied from Radio Telephony for Amateurs by Ballantine 1922.)
- 01:13, 6 December 2006 JA.Davidson talk contribs uploaded File:Coherer Rcvr.jpg (Created from a figure in "Elements of Radiotelegraphy" published in USA 1922. ~~~~)
- 17:00, 27 November 2006 JA.Davidson talk contribs uploaded File:Coherer.gif (Made this myself by cropping the figure number out of existing image ~~~~)
- 05:42, 23 November 2006 JA.Davidson talk contribs uploaded File:Coherer.jpg (I created this image. ~~~~)
- 20:40, 22 November 2006 JA.Davidson talk contribs uploaded File:Synthetic Zincite Crystals.jpg
- 20:32, 22 November 2006 JA.Davidson talk contribs uploaded File:Zincite.jpg (I made this image.)
- 05:45, 16 November 2006 JA.Davidson talk contribs uploaded File:CatWhisker.jpg (Was created by me from a image given to me by a friend for this use.)