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- 12:28, 4 October 2020 diff hist +690 561 Added a section about plugin compatibility amongst the four variants (561, 561A, 561B, 561S), as there was a very vague statement regarding plugin power consumption being the deciding factor. This is not the case.
- 19:08, 3 October 2020 diff hist +70 561
- 18:50, 3 October 2020 diff hist 0 561
- 18:13, 3 October 2020 diff hist +130 561 Added links to newly uploaded manual and field mod instructions.
- 18:10, 3 October 2020 diff hist +106 561
- 18:07, 3 October 2020 diff hist -6 561
- 18:01, 3 October 2020 diff hist +266 561
- 17:47, 3 October 2020 diff hist 0 N File:Tektronix561 NO040347FieldModification.pdf current
- 17:45, 3 October 2020 diff hist 0 N File:Tektronix561 NO040288FieldModification.pdf current
- 17:43, 3 October 2020 diff hist 0 N File:Tektronix561 NO040267FieldModification.pdf current
- 17:40, 3 October 2020 diff hist +62 N File:Tektronix561ServiceManual.pdf Full service manual including field modification instructions. current
- 17:48, 22 April 2020 diff hist +1 575
- 07:56, 18 July 2019 diff hist +340 User talk:Maurizio current
- 12:19, 17 July 2019 diff hist +105 5A21N current
- 12:15, 17 July 2019 diff hist +15 User:Maurizio current
- 12:15, 17 July 2019 diff hist +289 N User:Maurizio Created page with "Hello! I am the owner of a small repair company in Toronto, Canada. I work with lots of audio equipment, and have had experience in designing PCBs and analog circuits. I own m..."
- 12:11, 17 July 2019 diff hist +168 Template talk:MissingSpecs
- 12:06, 17 July 2019 diff hist +16 N File:5A21N TopClose1.jpg Rear, left side. current
- 12:05, 17 July 2019 diff hist +10 N File:5A21N Top.jpeg Left side. current
- 12:04, 17 July 2019 diff hist +11 N File:5A21N Bot.jpg Right side. current
- 12:04, 17 July 2019 diff hist +29 N File:5A21N BotClose.jpg Bottom side, front of plugin. current
- 12:03, 17 July 2019 diff hist +28 N File:5A21N TopClose2.jpg Inputs and input protection. current
- 12:01, 17 July 2019 diff hist +43 N File:5A21N Front.jpeg Front Panel of 5A21N with clear knob skirt. current
- 11:45, 17 July 2019 diff hist +283 67
- 11:42, 17 July 2019 diff hist +326 67
- 11:41, 17 July 2019 diff hist +34 Template:BeginSpecs current
- 11:31, 17 July 2019 diff hist -18 67
- 11:23, 17 July 2019 diff hist -19 Template:BeginSpecs →Specifications
- 11:19, 17 July 2019 diff hist -15 Template:BeginSpecs →Specifications
- 10:56, 17 July 2019 diff hist -25 Template:MissingSpecs →Specifications
- 10:46, 17 July 2019 diff hist -41 Template:MissingSpecs →Specifications
- 10:35, 17 July 2019 diff hist +250 Template:MissingSpecs →Specifications
- 10:23, 17 July 2019 diff hist +267 67 →Pictures
- 10:16, 17 July 2019 diff hist +130 561 →561
- 10:12, 17 July 2019 diff hist +231 561 →561
- 09:59, 17 July 2019 diff hist +476 561 →Pictures of 561
- 09:46, 17 July 2019 diff hist +4 561 →561
- 09:46, 17 July 2019 diff hist +220 561 →561
- 09:40, 17 July 2019 diff hist +24 N File:Type67 Top.jpg Top side of the Type 67. current
- 09:37, 17 July 2019 diff hist +30 N File:Type67 Bot.jpeg Component side of the Type 67. current
- 09:35, 17 July 2019 diff hist +38 N File:Type67 Mod104Number.jpg Serial number and modification number. current
- 09:34, 17 July 2019 diff hist +28 N File:Type67 Mod104 1.jpg Closeup of the modification. current
- 09:31, 17 July 2019 diff hist +28 N File:Type67 Mod104 2.jpg Closeup of the modification. current
- 09:30, 17 July 2019 diff hist +42 N File:Type67Mod104 Front.jpeg A type 67 time base plugin with 'Mod 104'. current
- 09:28, 17 July 2019 diff hist +84 N File:561 Back.jpeg Back of the 561 indicator unit. Note the power transistor fo the low voltage supply. current
- 09:27, 17 July 2019 diff hist +32 N File:561 FrontControls.jpeg Front panel controls of the 561. current
- 09:25, 17 July 2019 diff hist +19 N File:561 HVCover.jpg High voltage cover. current
- 09:24, 17 July 2019 diff hist +41 N File:561 LeftClose.jpg Power supply tubes and filter capacitors. current
- 09:22, 17 July 2019 diff hist +26 N File:561 CRTSocket.jpg Closeup of the CRT socket. current
- 09:21, 17 July 2019 diff hist +61 N File:561 BayConnector.jpg Closeup of the back of the plugin connector in the right bay. current
