User contributions for Peter
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18 December 2023
- 06:3706:37, 18 December 2023 diff hist 0 N File:GR1607-P2 2.jpg No edit summary current
- 06:3706:37, 18 December 2023 diff hist 0 N File:GR 874-VQ 2.jpg No edit summary
- 06:3606:36, 18 December 2023 diff hist 0 N File:GR 874-VQ 1.jpg No edit summary
- 06:2806:28, 18 December 2023 diff hist +2,750 N GR-874 connector Created page with "250px|thumb|right '''General Radio 874 (GR-874)''' connectors are hermaphroditic (asexual) coaxial RF connectors developed by Eduard Karplus in the late 1940s, initially for applications up to "4500 Mc" (4.5 GHz). GR-874 connectors are carefully engineered to keep a constant impedance throughout the signal path, by varying connector diameters between free-air and dielectrically supported sections. These connectors therefore exhibit..."
- 06:2806:28, 18 December 2023 diff hist +31 N Category:Introduced in 1948 Created page with "Category:Introduction years"
- 06:2506:25, 18 December 2023 diff hist 0 N File:GR874 1973 GR Catalog.pdf No edit summary current
- 06:1206:12, 18 December 2023 diff hist 0 N File:US Patent 2548457.jpg No edit summary current
- 06:1006:10, 18 December 2023 diff hist 0 N File:GR-874 connector 125 Ohms.jpg No edit summary current
- 06:0906:09, 18 December 2023 diff hist 0 N File:GR-874 connector 2.jpg No edit summary current
- 06:0906:09, 18 December 2023 diff hist 0 N File:GR-874 connector 1.jpg No edit summary current
- 06:0306:03, 18 December 2023 diff hist +78 Eduard Karplus No edit summary
- 05:5305:53, 18 December 2023 diff hist +48 Eduard Karplus No edit summary
- 05:5205:52, 18 December 2023 diff hist +1,500 Henry P. Hall No edit summary
- 05:3005:30, 18 December 2023 diff hist +1 GRWiki Guidelines No edit summary Tag: Reverted
- 05:2405:24, 18 December 2023 diff hist +906 Eduard Karplus instruments designed (from C.Hoffmann's list)
- 05:0105:01, 18 December 2023 diff hist +234 N User:Peter Created page with "Hi, my name is Peter. I'm a visiting paricipant here over from [https://w140.com/tekwiki/wiki/User:Peter TekWiki]. ==Links== * [https://conradhoffman.com/exp_index.pdf List of General Radio Instruments and Parts] @ conradhoffman.com"
- 04:5604:56, 18 December 2023 diff hist +129 Main Page No edit summary
- 04:5404:54, 18 December 2023 diff hist +118 Henry P. Hall No edit summary
- 04:4604:46, 18 December 2023 diff hist +31 N Category:Introduced in 1926 Created page with "Category:Introduction years"
- 04:4604:46, 18 December 2023 diff hist +34 General Radio Experimenter No edit summary
- 04:4504:45, 18 December 2023 diff hist +29 General Radio Experimenter No edit summary
- 04:4204:42, 18 December 2023 diff hist +473 N General Radio Experimenter Created page with "The '''General Radio Experimenter''' was a periodical published by General Radio containing theoretical articles, product news and background. Organized by year for easier browsing, following are links to every General Radio Experimenter, over 500 issues, that span the 1920's through the 1970's for viewing and download. * https://www.ietlabs.com/genrad/experimenters * [https://www.ietlabs.com/pdf/GenRad_History/GenRad_Experimenter_Index_1926-29.pdf Index 1926 - 1929]"
- 04:3904:39, 18 December 2023 diff hist +20 N Category:Documentation Created page with "Category:GR Wiki"
- 04:3904:39, 18 December 2023 diff hist +20 N Category:Technology Created page with "Category:GR Wiki"
- 04:3804:38, 18 December 2023 diff hist +31 Category:Introduced in 1959 No edit summary
- 04:3804:38, 18 December 2023 diff hist +20 N Category:Introduction years Created page with "Category:History" current
- 04:3704:37, 18 December 2023 diff hist +20 N Category:History Created page with "Category:GR Wiki"
- 04:3704:37, 18 December 2023 diff hist +31 N Category:Introduced in 1933 Created page with "Category:Introduction years"
- 04:3704:37, 18 December 2023 diff hist +305 650-A No edit summary
- 04:3504:35, 18 December 2023 diff hist +2,261 1650-A replaced BAMA manual link with local OCRed copies, added links
- 04:3104:31, 18 December 2023 diff hist +20 N Category:People Created page with "Category:GR Wiki"
- 04:3104:31, 18 December 2023 diff hist −1 Category:General Radio people No edit summary
- 04:3104:31, 18 December 2023 diff hist +20 N Category:General Radio people Created page with "Category:GR Wiki"
- 04:3004:30, 18 December 2023 diff hist +1,287 N Eduard Karplus Created page with "'''Eduard Karplus''' (September 7, 1899 – August ?, 1979) was an Austrian-born engineer, best known as the inventor of the Variac. Karplus was born in Hinterbrühl, Austria, the second child of Johann Paul Karplus, a neurophysiologist and psychiatrist, and Valerie von Lieben, a sister of physicist Robert von Lieben. He graduated from the Vienna University of Technology in 1923. From 1923 to 1929, he was employed in the RF laboratories of C. Lorenz AG, Berlin, Ge..."
- 04:2704:27, 18 December 2023 diff hist +1,170 N Henry P. Hall Created page with "thumb|150px|right|Henry P. Hall (undated) '''Henry P. Hall''' graduated from Williams College in 1949 and MIT in 1952 before joining General Radio as a co-op student in 1949. He then worked for close to forty years for the same company until his retirement from GenRad in 1993 as a staff scientist. He is credited with the design of the Digibridge instrument and invented the Orthonull mechanism (see 1650-A). ''please expand bio''..."
- 04:2204:22, 18 December 2023 diff hist 0 N File:Henry P. Hall.jpg No edit summary current
- 04:1704:17, 18 December 2023 diff hist +130 Main Page No edit summary
- 03:5503:55, 18 December 2023 diff hist +63 N File:GR 1650-A Impedance Bridge Manual (1960) OCR.pdf Peter moved page File:GR 1650-A Impedance Bridge Manual (1960) OCR.pdf to File:GR 1650-A Impedance Bridge Manual (1960).pdf current Tag: New redirect
- 03:5503:55, 18 December 2023 diff hist 0 m File:GR 1650-A Impedance Bridge Manual (1960).pdf Peter moved page File:GR 1650-A Impedance Bridge Manual (1960) OCR.pdf to File:GR 1650-A Impedance Bridge Manual (1960).pdf current
- 03:5403:54, 18 December 2023 diff hist +69 N File:GR 1650-A Impedance Bridge Manual (1960).pdf GR 1650-A Impedance Bridge Manual, 1960 version. OCRed.
- 03:4903:49, 18 December 2023 diff hist +93 N File:GR 1650-A Impedance Bridge Manual (1964).pdf GR 1650-A Impedance Bridge Manual, 1964 version. OCRed with manual corrections. current
15 December 2023
- 14:2614:26, 15 December 2023 diff hist +558 1650-A added internal photos
- 14:1714:17, 15 December 2023 diff hist 0 N File:GR 1650-A internal 8.jpg No edit summary current
- 14:1714:17, 15 December 2023 diff hist 0 N File:GR 1650-A internal 7.jpg No edit summary current
- 14:1714:17, 15 December 2023 diff hist 0 N File:GR 1650-A internal 6.jpg No edit summary current
- 14:1714:17, 15 December 2023 diff hist 0 N File:GR 1650-A internal 5.jpg No edit summary current
- 14:1714:17, 15 December 2023 diff hist 0 N File:GR 1650-A internal 4.jpg No edit summary current
- 14:1714:17, 15 December 2023 diff hist 0 N File:GR 1650-A internal 3.jpg No edit summary current
- 14:1714:17, 15 December 2023 diff hist 0 N File:GR 1650-A internal 2.jpg No edit summary current
- 14:1714:17, 15 December 2023 diff hist 0 N File:GR 1650-A internal 1.jpg No edit summary current
