Re: [time-nuts] Simulating Oscillator Noise: DifficultiesSimulatingFlicker FM Noise
On 25 April 2010 02:39, Magnus Danielson mag...@rubidium.dyndns.org wrote: On 04/24/2010 03:57 PM, Bob Camp wrote: Hi Hmmm, good point. The port must have been to something other than Linux. One of the many flavours of BSD I guess, or one of the many other flavours of UNIX. I have become old enough that most of the UNIX flavours I have worked on is now deceased or about to. This is mainly the history of commercial UNIXes. Unix will never die! They said it was going to die in the 80's but it's still going strong in some form or another, or imitated, embedded, pervasive, a survivor. What's more the ones you think are deceased are still being used out there by small and large groups of people who just won't let it die, they'll have to prise it out of their cold dead hands. Why, well people swear by it, all the other OS' people just swear at them (well at least one OS I can think of :) Cheers, Steve Cheers, Magnus ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Steve Rooke - ZL3TUV G8KVD A man with one clock knows what time it is; A man with two clocks is never quite sure. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Simulating Oscillator Noise: DifficultiesSimulatingFlicker FM Noise
Hi I *really* wish I'd kept labels off of the 9 track tapes that Western Electric shipped us in 1974 after I spent 6 months doing paperwork to get our original copy. Unix has been free for a long time. It's not always been easily available. If I still had a PDP-11 in the living room the tapes them selves might be of some use. The only minor point being that I never had a 9 track tape drive here at home. I always found it strange that they distributed it on 9 track rather than DEC Tape. Bob On Apr 25, 2010, at 4:55 AM, Steve Rooke wrote: On 25 April 2010 02:39, Magnus Danielson mag...@rubidium.dyndns.org wrote: On 04/24/2010 03:57 PM, Bob Camp wrote: Hi Hmmm, good point. The port must have been to something other than Linux. One of the many flavours of BSD I guess, or one of the many other flavours of UNIX. I have become old enough that most of the UNIX flavours I have worked on is now deceased or about to. This is mainly the history of commercial UNIXes. Unix will never die! They said it was going to die in the 80's but it's still going strong in some form or another, or imitated, embedded, pervasive, a survivor. What's more the ones you think are deceased are still being used out there by small and large groups of people who just won't let it die, they'll have to prise it out of their cold dead hands. Why, well people swear by it, all the other OS' people just swear at them (well at least one OS I can think of :) Cheers, Steve Cheers, Magnus ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Steve Rooke - ZL3TUV G8KVD A man with one clock knows what time it is; A man with two clocks is never quite sure. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Simulating Oscillator Noise: DifficultiesSimulatingFlicker FM Noise
Hi Back then our net (ARPA net) connection didn't get us to very many places. One of them, ummm, er, did indeed have a copy of what we were looking for. Not quite point and click to get it, but close. I guess I should have said it hasn't always been easily available *legally*. Bob On Apr 25, 2010, at 7:47 AM, Poul-Henning Kamp wrote: In message 116cf051-7be6-4f8f-91cc-7cee18ecf...@rtty.us, Bob Camp writes: I *really* wish I'd kept labels off of the 9 track tapes that Western Electric shipped us in 1974 after I spent 6 months doing paperwork to get our original copy. Unix has been free for a long time. It's not always been easily available. These day it is: ftp://minnie.tuhs.org/UnixArchive/ -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Simulating Oscillator Noise: DifficultiesSimulatingFlicker FM Noise
On 04/25/2010 10:55 AM, Steve Rooke wrote: On 25 April 2010 02:39, Magnus Danielsonmag...@rubidium.dyndns.org wrote: On 04/24/2010 03:57 PM, Bob Camp wrote: Hi Hmmm, good point. The port must have been to something other than Linux. One of the many flavours of BSD I guess, or one of the many other flavours of UNIX. I have become old enough that most of the UNIX flavours I have worked on is now deceased or about to. This is mainly the history of commercial UNIXes. Unix will never die! They said it was going to die in the 80's but it's still going strong in some form or another, or imitated, embedded, pervasive, a survivor. What's more the ones you think are deceased are still being used out there by small and large groups of people who just won't let it die, they'll have to prise it out of their cold dead hands. Why, well people swear by it, all the other OS' people just swear at them (well at least one OS I can think of :) You didn't get me right... UNIX (and offspring Linux) is not dying, but Xenix, SunOS, Ultrix, OSF/1, HP-UX, IRIX etc. is dying or dead. Wonder what is happening to AIX (which I haven't used) and Solaris. These are all various vendors proprietary variants of UNIX. The field have shifted in that sense. A greater part of the OS is now being brought in from the open and only necessary stuff is added for the task at hand. Proprietary OSes in the old sense is less and less meaningful. Cheers, Magnus ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Unix
Hi Solaris at least has seen the light and is becoming a lot more open than it once was. Bob On Apr 25, 2010, at 8:01 AM, Magnus Danielson wrote: On 04/25/2010 10:55 AM, Steve Rooke wrote: On 25 April 2010 02:39, Magnus Danielsonmag...@rubidium.dyndns.org wrote: On 04/24/2010 03:57 PM, Bob Camp wrote: Hi Hmmm, good point. The port must have been to something other than Linux. One of the many flavours of BSD I guess, or one of the many other flavours of UNIX. I have become old enough that most of the UNIX flavours I have worked on is now deceased or about to. This is mainly the history of commercial UNIXes. Unix will never die! They said it was going to die in the 80's but it's still going strong in some form or another, or imitated, embedded, pervasive, a survivor. What's more the ones you think are deceased are still being used out there by small and large groups of people who just won't let it die, they'll have to prise it out of their cold dead hands. Why, well people swear by it, all the other OS' people just swear at them (well at least one OS I can think of :) You didn't get me right... UNIX (and offspring Linux) is not dying, but Xenix, SunOS, Ultrix, OSF/1, HP-UX, IRIX etc. is dying or dead. Wonder what is happening to AIX (which I haven't used) and Solaris. These are all various vendors proprietary variants of UNIX. The field have shifted in that sense. A greater part of the OS is now being brought in from the open and only necessary stuff is added for the task at hand. Proprietary OSes in the old sense is less and less meaningful. Cheers, Magnus ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Simulating Oscillator Noise: DifficultiesSimulatingFlicker FM Noise
Hi Magnus, On 26 April 2010 00:01, Magnus Danielson mag...@rubidium.dyndns.org wrote: I have become old enough that most of the UNIX flavours I have worked on is now deceased or about to. This is mainly the history of commercial UNIXes. You didn't get me right... UNIX (and offspring Linux) is not dying, but Xenix, SunOS, Ultrix, OSF/1, HP-UX, IRIX etc. is dying or dead. Wonder what is happening to AIX (which I haven't used) and Solaris. These are all various vendors proprietary variants of UNIX. The field have shifted in that sense. A greater part of the OS is now being brought in from the open and only necessary stuff is added for the task at hand. Excuse me for reading it the way I did as you can get two meanings from what you said. Whatever is said about the rag, tag and bobtail variants of 'nix, there are still folks keeping them alive because they have applications/hardware/fan-cub interests. Strange in a way, I can't imagine anyone wanting to keep WinME, or even Vista (among others), alive today. Agreed, why reinvent the wheel. Once something has gone through a long history of incremental development and debugging it seems like a sensible idea to use that as a foundation and build on it. Proprietary OSes in the old sense is less and less meaningful. It's just an OS after all, nothing more than that, but it does form the foundation of any system and it needs to be rock solid. Sadly some software houses seem to think that a stable sold foundation is not sexy so they stick some chipboard down on the floor, knock up some plasterboard walls (who needs brick on the outside) add a hardboard roof and then add lots of dazzling Christmas lights, gargoyles, flashing neon lights, spinning mirror balls, and all the carlos-fandango flashy accessories under the sun. And in 6(2) years time they go and build another house but this time they change about 80% of the design completely because no-one can ever remember how they made the last one and all the young people who built it are burnt out and have left for the hills leaving no documentation (who needs documentation anyway). And the strange thing is that people wonder how you can make an open source OS for free, I mean it costs big money to make anything good right :) Sorry for the waste of bandwidth guys. Cheers, Steve Cheers, Magnus ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Steve Rooke - ZL3TUV G8KVD A man with one clock knows what time it is; A man with two clocks is never quite sure. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] [OT] degaussing
Hi, Up to the Philips 20AX tubes they used adjustable multipole units around the neck of the tube. These multipoles can be readjusted if needed. From the 30AX design on, the used multipoles that were internal, thus inside the neck. The required correction was measured during manufacture and the internal multipole magnetized. Turning the tube upside down will help down under if the tube was manufactured in the northern hemisphere. Then tune the deflection yoke back or swap line and frame connections. Henk Op 18 apr 2010, om 04:09 heeft Max Robinson het volgende geschreven: I haven't been following this thread but here are my comments based on the attached messages. You may have difficulty finding a service technician who knows how to adjust purity and convergence on a CRT. In about 1975 they started coming from the factory with deflection yokes installed and all purity and convergence adjusted. Regards. Max. K 4 O D S. Email: m...@maxsmusicplace.com Transistor site http://www.funwithtransistors.net Vacuum tube site: http://www.funwithtubes.net Music site: http://www.maxsmusicplace.com To subscribe to the fun with transistors group send an email to. funwithtransistors-subscr...@yahoogroups.com To subscribe to the fun with tubes group send an email to, funwithtubes-subscr...@yahoogroups.com - Original Message - From: Arnold Tibus arnold.ti...@gmx.de To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, April 17, 2010 7:04 AM Subject: Re: [time-nuts] [OT] degaussing The dotpitch of Trinitron and Diamondtron tubes (Mitsubishi) is at 1/100 inch (0.24 mm to 0.27 mm), which defines the distance of these shadow wires. What tube width do you have? ;-) The wires are very sensitive to vibrations which makes the horizontal stabilizing wires necessary (in most cases 2, max. 3). These are visible with a bright and uniform picture. All such tubes are equipped with a degaussing system (electromagnetic coil in a black hose) which are normally activated always when switching the monitor/ TV on. There is normally no forther degaussing needed. One can apply stronger magnetic fields from the front side by using cannibalized coils in parallel with an adequate 50/ 60 Hz system stepping the field continuously down. Attention, strong dc H- fields may result in sticking some wires together, which may be very difficult to get it corrected! The small magnets on the back of the tube are necessary to linearize the dynamic field of the deflecting coil and to compensate other small steady magnetic distortions around the tube. There are some more magnets on the neck of the tube for convergence and beam forming. A long and distracting work to to when you had to replace the tube or coils and then to adjust for white and clean colors and sharp picture...%-)) Older systems needed an earth field compensation in situ. (Don't try it when you are not experienced with it, you will turn crazy - and the professional serviceman later will as well!) greetings, Arnold On Fri, 16 Apr 2010 21:05:31 EDT, saidj...@aol.com wrote: point of trivia: can you count how many vertical wires are strung across a Trinitron monitors' shadow mask?? I used to work at Sony for a long time, we had a TV assembly line next door :) If you can see the vertical wires, you still have very good eyesight... bye, Said In a message dated 4/16/2010 04:55:35 Pacific Daylight Time, cfhar...@erols.com writes: Are they really? For some reason, every Trinitron I have ever seen has clusters of little stick on magnets placed here and there on the back of the glass envelope. The trinitron has a shadowmask. It is a grill of highly tensioned wires that are positioned just behind the screen. The original trinitron tube was a little 5 inch diagonal CRT. It had to be small because the wires tended to vibrate if the set was bumped, and that made for some very odd displays. The later larger tubes had horizontal titanium wires welded to the backs of the shadow mask wires every 5 or 10 inches, to prevent the psychedelic color fest that happened when the CRT got bumped. The trinitron has three very carefully aligned cathodes in the gun. They are positioned side-by-side, creating the slight different projection angles necessary to cause the long vertical slots formed by the shadow mask to eclipse the appropriate color bands on the screen. I'm not sure what you are describing; it sure sounds cool; but it isn't a trinitron. Can you find some references? I'd like to read up on it. -Chuck Harris ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
Re: [time-nuts] [OT] degaussing
When I moved from England to New Zealand I brought my Sony Trinatron TV with me and had the tuner replaced so it would work over here (we still have VHF TV and a different sound sub-carrier). The set worked fine after the conversion and I noticed no problems at all with the picture but that's not to say that the REALLY good TV guy had not sorted things out. Steve On 26 April 2010 03:51, Henk h...@deriesp.demon.nl wrote: Hi, Up to the Philips 20AX tubes they used adjustable multipole units around the neck of the tube. These multipoles can be readjusted if needed. From the 30AX design on, the used multipoles that were internal, thus inside the neck. The required correction was measured during manufacture and the internal multipole magnetized. Turning the tube upside down will help down under if the tube was manufactured in the northern hemisphere. Then tune the deflection yoke back or swap line and frame connections. Henk Op 18 apr 2010, om 04:09 heeft Max Robinson het volgende geschreven: I haven't been following this thread but here are my comments based on the attached messages. You may have difficulty finding a service technician who knows how to adjust purity and convergence on a CRT. In about 1975 they started coming from the factory with deflection yokes installed and all purity and convergence adjusted. Regards. Max. K 4 O D S. Email: m...@maxsmusicplace.com Transistor site http://www.funwithtransistors.net Vacuum tube site: http://www.funwithtubes.net Music site: http://www.maxsmusicplace.com To subscribe to the fun with transistors group send an email to. funwithtransistors-subscr...@yahoogroups.com To subscribe to the fun with tubes group send an email to, funwithtubes-subscr...@yahoogroups.com - Original Message - From: Arnold Tibus arnold.ti...@gmx.de To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, April 17, 2010 7:04 AM Subject: Re: [time-nuts] [OT] degaussing The dotpitch of Trinitron and Diamondtron tubes (Mitsubishi) is at 1/100 inch (0.24 mm to 0.27 mm), which defines the distance of these shadow wires. What tube width do you have? ;-) The wires are very sensitive to vibrations which makes the horizontal stabilizing wires necessary (in most cases 2, max. 3). These are visible with a bright and uniform picture. All such tubes are equipped with a degaussing system (electromagnetic coil in a black hose) which are normally activated always when switching the monitor/ TV on. There is normally no forther degaussing needed. One can apply stronger magnetic fields from the front side by using cannibalized coils in parallel with an adequate 50/ 60 Hz system stepping the field continuously down. Attention, strong dc H- fields may result in sticking some wires together, which may be very difficult to get it corrected! The small magnets on the back of the tube are necessary to linearize the dynamic field of the deflecting coil and to compensate other small steady magnetic distortions around the tube. There are some more magnets on the neck of the tube for convergence and beam forming. A long and distracting work to to when you had to replace the tube or coils and then to adjust for white and clean colors and sharp picture...%-)) Older systems needed an earth field compensation in situ. (Don't try it when you are not experienced with it, you will turn crazy - and the professional serviceman later will as well!) greetings, Arnold On Fri, 16 Apr 2010 21:05:31 EDT, saidj...@aol.com wrote: point of trivia: can you count how many vertical wires are strung across a Trinitron monitors' shadow mask?? I used to work at Sony for a long time, we had a TV assembly line next door :) If you can see the vertical wires, you still have very good eyesight... bye, Said In a message dated 4/16/2010 04:55:35 Pacific Daylight Time, cfhar...@erols.com writes: Are they really? For some reason, every Trinitron I have ever seen has clusters of little stick on magnets placed here and there on the back of the glass envelope. The trinitron has a shadowmask. It is a grill of highly tensioned wires that are positioned just behind the screen. The original trinitron tube was a little 5 inch diagonal CRT. It had to be small because the wires tended to vibrate if the set was bumped, and that made for some very odd displays. The later larger tubes had horizontal titanium wires welded to the backs of the shadow mask wires every 5 or 10 inches, to prevent the psychedelic color fest that happened when the CRT got bumped. The trinitron has three very carefully aligned cathodes in the gun. They are positioned side-by-side, creating the slight different projection angles necessary to cause the long vertical slots formed by the shadow mask to eclipse the appropriate color bands on the screen. I'm not sure what you are describing; it sure sounds
[time-nuts] Closing the lab -- gear for sale
Dear time-nuts: I'm shutting down my shop-lab and want to sell my equipment. I've got some interesting stuff you can see at: www.moorepage.net/Testequip.html As the web page notes, I'll take bids and update them, and when interest runs out on something, high bidder gets it. Thanks for all your past help; good luck... Dick Moore ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] *nix (was Re: Simulating Oscillator Noise:, DifficultiesSimulatingFlicker FM Noise)
On 4/25/2010 9:34 PM, time-nuts-requ...@febo.com wrote: You didn't get me right... UNIX (and offspring Linux) is not dying, but Xenix, SunOS, Ultrix, OSF/1, HP-UX, IRIX etc. is dying or dead. HP-UX is still alive and kicking (on Itanium now, not PA-RISC). -ch ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
