> Hello, > > maybe this is a bit off-topic but who knows :-) > > This is a question for all those interested in history of tubes and > technology. > > I have a strange tube here of totally unknown use: > > It�s length is approx 10 cm, looks like a letter "H" with one electrode at > the bottom of each leg and quite some mercury. > > It�s NOT a switch, there is not enough mercury in it to cover both > electrodes at once in any possible position. > > so it must be something else... > > pics at > > http://www.wuesten.net/strange/senditron1.jpg > http://www.wuesten.net/strange/senditron2.jpg > > What�s written on it: > > There is a small stamp on it saying "Senditron" ; ...wter ( disturbed, > illegible beginning of a word ending with "wter" ) and a datecode 4 /65 > plus a single letter "D" > > nothing else. > > Anybody having an idea what this is, what it might be good for and > who might have made it ? > > It�s a nice piece in my tubecollection and I always like to know what I > collect :-) > > Thank you > > Jan
Hallo Jan, As a consequence of my hollydays, my reaction is late: I got the book "Industrial Electronics Handbook" by dr R. Kretzmann, published by Philips Technical Library (which did not exists anymore). In that book 5 pages are devoted to Senditrons. The shape is as a H, but there are more electrodes. If you are interested, mail it and I will try to scan these pages. best regards, Harry -- Author: H.C. Croon INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
