museum-of-communication : Messages : 27-56 of 330

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27	The Eb page of the Lothians Radio Society is at the URL of http://www.btinternet.com/~jacobite/radio/lothians.html C. Cowper passed this info on to me today...	Geoffrey.Walsh geoffrey.walsh@...	Jun 12, 1999 4:53 pm
28	Hi, all Those of us who enjoyed Sandy Ness's excellent presentation at the Museum of Communication AGM on Saturday may be interested in the following extract ...	David Brown davidwbrown@...	Jun 16, 1999 8:13 pm
29	There is a play about James Clerk Maxwell due to be performed at the Fringe next month. I saw the preview and can recommend it. I have been sent the following...	Geoffrey.Walsh geoffrey.walsh@...	Jul 21, 1999 5:10 pm
30	Geoffrey This sounds very good. Anything that brings Maxwell to a wider audience can only be beneficial. Thanks for advising everyone about this. Best wishes ...	David Brown davidwbrown@...	Jul 21, 1999 10:32 pm
31	From: Phil Phillips (phil4CCML@...) on behalf of Museum of Communications To: Xerxes Mazda (x.mazda@...) CC: John Crompton (wjc@...),...	Phil4CCML@...	Aug 30, 1999 6:09 pm
32	Does anyone have information about the Baudot instruemnt for sending Morse. It had 5 keys. Is there one in any of the museums I wonder ? I have recently been...	Geoffrey.Walsh geoffrey.walsh@...	Sep 26, 1999 6:11 am
33	I see I have been a bit careless in what I have posted, the Baudot system was a form of telegraphy but not, of course, Morse. -- Geoffrey.Walsh@... ...	Geoffrey.Walsh geoffrey.walsh@...	Sep 26, 1999 7:23 pm
34	I understand that mobile phones use frequencies aound 900 M Hz or 1800 M Hz. Some people apparently blame on their use headaches and perhaps many other...	Geoffrey.Walsh geoffrey.walsh@...	Nov 4, 1999 5:28 am
35	I have now a comparatively inexpensive system for getting signals into a PC, displaying them as oscilloscope tracings and saving the results as numbers in a...	Geoffrey.Walsh geoffrey.walsh@...	Nov 13, 1999 7:47 pm
36	... Answer: If you have Excel, you have all the required functions already: STDEV will calculate standard deviation based on sample, STDEVP will do the same...	Dave Pack david.pack@...	Nov 14, 1999 9:58 pm
37	For MEGS try http://www.joates.demon.co.uk/megs/ There is also a site related to the magazine Morsum Magnificat - http://www.morsum.demon.co.uk/ I think. I...	Ian Reid 100533.3462@...	Nov 15, 1999 9:24 pm
38	To send Morse is a skill which takes time to develop. Some telegraphists no doubt reach close to the limits of human attainments and have controls of the level...	Geoffrey.Walsh geoffrey.walsh@...	Feb 21, 2000 7:28 pm
39	Hello Geoffrey I was very sorry to hear of the death of Harry Matthews. I had heard so much about him and regret not having had the opportunity of a personal...	Zyg Nilski zyg@...	Feb 21, 2000 11:05 pm
40	... Yes please do that. If you wish to edit the text before going to press please Email the adjusted version. I understand that someone is writing an obituary...	Geoffrey.Walsh geoffrey.walsh@...	Feb 22, 2000 7:41 am
41	Hi, Geoffrey and Zyg Further to Geoffrey's comment about Harry's obituary, you may like to know that this is being co-ordinated by Tom Stevenson (...	David Brown davidwbrown@...	Feb 22, 2000 8:39 pm
42	Someone yesterday drew my attention to an article in the Scotsman giving evidence that Oliver Lodge and a Patrick Muirhead were the first to �broadcast� a...	Geoffrey.Walsh geoffrey.walsh@...	Mar 18, 2000 5:43 am
43	Hi, Geoffrey A few other papers have now picked this story up too. Apparently, an exhibition of Lodge and Muirhead's work was to open this weekend at the ...	David Brown davidwbrown@...	Mar 19, 2000 5:32 pm
44	Not that I am a biographer of Sir Oliver Lodge but this is the first reference to any connection with Oxford that I have read. He was assistant prof of maths...	Zyg Nilski zyg@...	Mar 19, 2000 11:06 pm
45	... The following is taken from: 'Bright Lights' The Stevenson Engineers 1752 - 1971 ISBN 0 9535514 0 7 Published by Prof. Roland Paxton Heriot Watt...	Dave Pack david.pack@...	Mar 21, 2000 6:11 pm
46	CW is normally received by superhets. There is one or sometimes two frequency conversions, a beat frequency oscillator and often a sharp filter. The results...	Geoffrey.Walsh geoffrey.walsh@...	Apr 2, 2000 7:26 am
47	Hi Martin, and everyone else.... this is just to help Martin with his lost his adress book. We are all fine, I'm looking forward to my imminent 'retriral'.......	Chris Gill chris@...	May 13, 2000 10:19 pm
48	I have in my possession an electrical �magneto� housed in a varnished wooden box. When the handle is turned gearing and a belt drive caused an armature to...	Geoffrey.Walsh geoffrey.walsh@...	Jun 4, 2000 6:45 am
49	Can anyone tell me what Vinkor is? I think it has something to do with magnetic cores for transformers, but I'm not sure. Also, can anyone tell me if the...	Andy Dailey a.j.dailey@...	Jul 7, 2000 5:44 pm
50	Hi Andy As I recall, Vinkor was the name given to a range of ferrite core products which were available in the 60s and 70s for winding your own transformers. ...	rshivas@...	Jul 8, 2000 11:50 pm
51	Can anyone tell me about the history of the magneto. Who first made one ? Am I right in thinking that magnetos use a coil which rotates in a magnetic field....	Geoffrey.Walsh geoffrey.walsh@...	Aug 17, 2000 6:25 pm
52	Subject: Re: [museum-of-communication] Magneto ... internal-combustion ... turns ... 385 ... magnetic ... of ... no ... voltage ... closure ... which ... ...	Dave Pack david.pack@...	Aug 24, 2000 8:37 pm
53	I was recently doing a technical report on an early 1960's solid state receiver. On the inside back cover was a list of what each device did e.g.IF Amp. One...	Andy Dailey a.j.dailey@...	Oct 10, 2000 11:21 pm
54	Has anyone got any details of a WW2 Radar facility that was built in the Braid hills to the south of Edinburgh? I don't know if it was an operational station,...	Dave Pack david.pack@...	Nov 26, 2000 5:46 pm
55	I have lived in Liberton for years. I was told long ago that it was to do with Ferrantis and was secret, but I cannot verify this supposition. There must be...	Geoffrey Walsh geoffrey.walsh@...	Nov 26, 2000 6:51 pm
56	Try Colin Latham, e-mail: colin@... He has researched and written books on the history of radar. Zyg Nilski ...	Zyg Nilski zyg@...	Nov 27, 2000 11:50 am

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