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00:1100:11, 26 September 2024 diff hist +115 Circuit breaker →Arc interruption: Added photo of an arc chute inside a high voltage switch

01:0901:09, 18 October 2023 diff hist +6 m Rotary encoder →Incremental encoder: corrected header formatting
01:0701:07, 18 October 2023 diff hist +372 Rotary encoder →Incremental encoder: Added section and photo on Rotary Pulse Encoders

02:2002:20, 28 August 2023 diff hist +1 m Say Anything... Fixed typo in name
02:1902:19, 28 August 2023 diff hist +129 Say Anything... →Plot: Added the Iconic Sharp GF-7600 Boombox
02:1702:17, 28 August 2023 diff hist +157 Boombox →History: Added the iconic Sharp GF-7600 from Say Anything Tag: Reverted

08:1808:18, 19 July 2023 diff hist +246 Keratometer No edit summary
08:1008:10, 19 July 2023 diff hist +103 Autorefractor →Technique
08:0908:09, 19 July 2023 diff hist +143 Autorefractor →Technique: Added photo of inside an Auto Refkeratometer

07:4507:45, 7 June 2023 diff hist +85 Beam waveguide antenna Added schematic
04:0204:02, 7 June 2023 diff hist +113 Canberra Deep Space Communication Complex →History: Added map of the CDSCC

22:2122:21, 29 March 2023 diff hist +97 Dick Smith (businessman) Added recent 2023 photo

01:0801:08, 14 August 2022 diff hist +62 Glossary of locksmithing terms Added photo of a relocker

03:5203:52, 9 July 2021 diff hist +207 HP 9845C Added 5061-3001 processor photo

02:5802:58, 8 May 2021 diff hist +121 Hybrid integrated circuit →Overview: Added image of hybrid thick film ceramic PCB

07:3707:37, 19 January 2021 diff hist +85 Big things (Australia) →New South Wales: Added photo of the Big Ugg Boots Tag: Visual edit

02:0102:01, 18 November 2020 diff hist −103 Timeline of computing 1980–1989 →1982: Removed incorrect release date for Compaq portable
02:0002:00, 18 November 2020 diff hist +170 Timeline of computing 1980–1989 →1983: Added Compaq Portable release

06:4906:49, 14 October 2020 diff hist −15 Norwest Business Park Removed reference to ice rink which is now gone, and added Hills Shire council.

05:4605:46, 30 July 2020 diff hist +145 Ultrasonic transducer Added probe construction image

04:5404:54, 27 June 2020 diff hist +119 Zero insertion force Added ZIF connector photo

06:2006:20, 13 April 2020 diff hist +76 Norwest railway station →Gallery: Added southern side photo

05:5505:55, 26 December 2019 diff hist +483 Norwest Business Park →History: Added Cathay Pacific history
05:4705:47, 26 December 2019 diff hist +116 Norwest Business Park →Transport: Added Metro photo
05:4405:44, 26 December 2019 diff hist +116 Norwest, New South Wales →Metro: Added metro photo
05:4205:42, 26 December 2019 diff hist +44 Norwest railway station Added extra photo annotation
05:3905:39, 26 December 2019 diff hist +71 Norwest railway station Added norwest station photo
05:3805:38, 26 December 2019 diff hist +72 Sydney Metro →Sydney Metro Northwest: Added Norwest Metro station photo
05:3005:30, 26 December 2019 diff hist +271 Alkaline battery →Leaks: Added battery leakage photos

00:0000:00, 26 November 2019 diff hist +83 Valley Heights Rail Museum →Museum exhibits: Added turntable photo

04:0304:03, 14 May 2019 diff hist +167 Power Mac G4 Cube →Specifications: Added internal photos

12:2112:21, 22 April 2019 diff hist +185 Electrolytic capacitor →Reverse voltage: Added photo of a vent port explosion

08:0108:01, 12 April 2019 diff hist +45 Barry Marshall Updated photo to 2019 with Nobel pin

07:3307:33, 4 February 2019 diff hist +132 Planar transformer Added images

07:0507:05, 30 January 2019 diff hist +272 Software protection dongle →History: Added photos

10:2210:22, 3 January 2019 diff hist +180 Calculator watch Added Casio TC500 photo
10:1710:17, 3 January 2019 diff hist +208 Touchscreen →Capacitive: Added Casio touch screen photo

11:3911:39, 17 December 2018 diff hist +89 HP-42S Added internal photo

05:2805:28, 6 August 2018 diff hist +127 Texas Instruments TMS1000 Added image of TMS1100

13:1113:11, 28 May 2018 diff hist +222 Crystal oscillator →Crystal oscillator circuits: Added DIP package oscillator teardown photo

12:1412:14, 24 January 2018 diff hist +72 IBM PCjr →Differences from the IBM PC: Added cartridge image
12:1012:10, 24 January 2018 diff hist +126 IBM PCjr →Hardware: Added internal photos

02:3102:31, 16 August 2017 diff hist +54 Spark gap →Protective devices: Added PCB spark gap reference
02:2902:29, 16 August 2017 diff hist +340 Spark gap →Protective devices: Added PCB spark gap photo

01:1801:18, 26 July 2017 diff hist +685 Third-party evidence for Apollo Moon landings →New lunar missions: Added photo comparison of Apollo 17 landing site to original 16mm footage

12:1612:16, 28 November 2016 diff hist +743 Dulmont Magnum Added photos

00:1800:18, 25 October 2016 diff hist +74 Photoresistor →Design considerations: Added photo
00:1300:13, 25 October 2016 diff hist +311 TI-74 Added photos

04:0904:09, 18 July 2016 diff hist +76 Roman Baths (Bath) →How the hot springs form at the Bathhouse: Added panoramic photo

00:1500:15, 23 June 2016 diff hist +245 Power dividers and directional couplers →Directional couplers: Added photos of PCB directional couplers

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