Re: [GTALUG] mysterious restarts

> Most people think 60Hz when they think AC. But I would guess that in > a motor AC is timed to the rotation so that commutators (I think > that's what they are called) can be eliminated. > > Would that AC be 60Hz or would it be variable, matching some function > of the motor's current speed?

Re: [GTALUG] mysterious restarts

> Modern motor controllers can be quite tolerant of significant voltage > variation. However, I doubt they're changing the voltage. I'm not a power systems engineer, but it could be that changing the supply voltage would be a matter of changing taps on a transformer. As for flag day - I

Re: [GTALUG] mysterious restarts

> > Sure they might be bigger sparks with the 50% higher power demand the > new trains have. > During an ice storm, I watched from the Electrical Building on Church as one of the streetcar overhead lines dropped onto the rails. Man, that was exciting..and then I guess a breaker blew somewhere.

Re: [GTALUG] War Story: for want of a nail...

> I went to Home Depot and found some nuts and machine screws to do the > job. 4-40 by 1 inch. I just hope that they don't cause shorts. > > I had to buy a pack of 26 screws and another of 28 nuts. It is > interesting that those numbers are not equal. I'd have to buy 13 > boxes of nuts and 14

Re: [GTALUG] mysterious restarts

>> Who built a computer that cared about AC frequency to drive the real >> time clock? Never heard of anyone doing that. > > My first computer, a Poly-88 8080 based system, did (I still have it). > > > The transformer used for the linear power

Re: [GTALUG] Advice -- Building Debian 8 PC To Replace Win XP PC;

>> * A-1 Surplus out in the wilds of Etobicoke is a vast cavern of *stuff*. >> I'm told that patient browsing rewards with some excellent finds*. >> >> If you plan ahead and have a few weeks before a build, you can buy >> selection boxes of hardware on eBay from Hong Kong, and they'll arrive >>

[GTALUG] Documentary Movie on Stuxnet

http://www.salon.com/2016/07/13/science_fiction_cyber_war_is_here_alex_gibney_on_zero_days_and_stuxnet_the_secret_weapon_that_got_away/ -- Peter Hiscocks Syscomp Electronic Design Limited, Toronto http://www.syscompdesign.com USB Oscilloscope and Waveform Generator 647-839-0325 --- Talk

[GTALUG] Exercises for Computer Users (long)

Some years ago, as the result of a really bad workstation arrangement and a huge typing project, my wrists started to display carpal tunnel syndrome. It got serious very quickly and I had to use a Dragon Dictate voice input system to input text. My doctor sent me for physio and I had massage

Re: [GTALUG] Suggestions: A Book for a Beginner, new to the Linux Shell

I learned the command line from a charming and very readable book: 'Starting with Unix' by P.J.Brown. It appears on Amazon for the princely sum of $1.05, and probably available used through ABE (Academic Book Exchange) or other used book dealers. Who would have thought that a book on the Unix

Re: [GTALUG] Suggestions: A Book for a Beginner, new to the Linux Shell

> Many years ago (in the 1970s) I read the manual he produced for ML/1, > his macroprocessor. I was startled at how well the manual worked, at > least for me, at least at that time. Perhaps the best manual I have read. > > Apparently ML/1 was the result of his PhD research, completed in 1967. >

Re: [GTALUG] cheap Raspberry Pi, today only

> Agreed that the Newegg deal is great for those who can take advantage. How does this compare with Creatron (on College)? Always good to support the local store if you can and the price is not way out of line. Peter -- Peter Hiscocks Syscomp Electronic Design Limited, Toronto

Re: [GTALUG] [GTALUG-Announce] Meeting on 14th February 2017 at 7:30pm

Sounds like an interesting meeting. However, anyone wanting to attend will have to do some negotiation with their Significant Other, since this is Valentine's day. (It would feed into the stereotype to suggest that TLUG members don't *have* SO's, but I'm sure that's not the case ;). Anyway, I

Re: [GTALUG] Linux basics presentation

Max - How long is the presentation? Where would it take place? When you say 'basic', is this to people with essentially no knowledge of linux? Peter > Hello, > > I run Toronto Enterprise DevOps user group and I'm looking for someone to > present on Linux basics on April 13th in Toronto. Would

Re: [GTALUG] Linux basics presentation

> When I have done presentations for groups I did not know well, with the > potential for broad, open-ended topics, as is certainly the case here, the > approach I have taken has been to solicit questions in advance. That's an excellent suggestion, thanks. P. -- Peter Hiscocks Syscomp

Re: [GTALUG] Kelly Gotlieb

Thanks for posting this, Hugh. Very interesting. Peter > C. C. "Kelly" Gotlieb died on October 16 at age 95. Kelly was one of > the zeroth generation of Canadian Computing. Probably the last I > knew. > > (I don't remember ever calling him "Kelly" to his face. I never felt > that I was a peer

Re: [GTALUG] Hardware Hack - help needed

Back in the days of the Commodore PET, I wanted to convert the keyboard into Dvorak layout. Nowadays, I'd find the keyboard translation table, edit that and blow a new ROM. But in those days it was easier to rewire the keyboard. Using a Dremel tool, I cut the traces to each switch and rewired it

[GTALUG] [Fwd: Re: Hardware Hack - help needed]

> Back in the days of the Commodore PET, I wanted to convert the keyboard >> into Dvorak layout. Nowadays, I'd find the keyboard translation table, >> edit that and blow a new ROM. > Usually keyboards are wired as a matrix with the lines in the cable representing the X and Y scan lines and each

Re: [GTALUG] [GTALUG-Announce] Meeting on 14 March at 7:30pm

I can present a 5 minute talk on 'Assembly Language Programming Atmel Microprocessors (eg, the Arduino boards) from a Linux platform.', if there is interest. Peter > > > # Let's Encrypt and Lighting Talks > > To start off the meeting we have a ten minute talk

Re: [GTALUG] Fw: surprise!

Yeah, it reminds me of my experience dealing with a group of bikers. "We have a present for you." they said at one point. The gift didn't work out, and I'm still here ;). P. > What the... okay, I think it's safe to say *don't open the damned link". > > Somebody got pwned. > > W. > > On 7 Apr

Re: [GTALUG] Dinner Tonight (was Meeting on 8 August at 7:30pm)

Any further thoughts on this? > h...@gtalug.org wrote: >> * 6:00 pm - Please discuss on the general mailing list (i.e. >> ) where you want to go for dinner. > > Anyone have any ideas where we should have dinner tonight? > > Here is a list of options:

[GTALUG] Canon Lide 30 Scanner for Linux

Further to my previous request: I had asked for suggestions for a modern scanner to replace this Canon Lide30 that doesn't work on my main linux box. The scanner does work under Windows. I also tried it under the other installations of Linux I have access to: meercat Linux Mint 17.2 Rafaela

[GTALUG] Stand-alone scanner for Ubuntu?

My Canon Lide30 scanner used to work under Ubuntu Linux but at some point it ceased to work and I haven't been able to resurrect it. (It works OK with Windows, so it's definitely a software issue.) So now I'm looking for a stand-alone scanner that is Linux compatible. Not required to be high

[GTALUG] Programming Atmel Microprocessor from Linux

I'm currently developing a program in assembly language, using a Linux platform to host the development. The development environment is very simple. My notes on this are now on my academic web page at http://www.ee.ryerson.ca/~phiscock/ in the 'papers' subdirectory. Peter -- Peter Hiscocks

Re: [GTALUG] Programming Atmel Microprocessor from Linux

You're welcome. Feel free to comment. Peter > Thanks Peter. Downloaded. > -- > William Park <opengeome...@yahoo.ca> > > On Fri, Sep 22, 2017 at 04:22:32PM -0400, Peter Hiscocks via talk wrote: >> I'm currently developing a program in assembly language, using

Re: [GTALUG] Programming Atmel Microprocessor from Linux

Thanks, Kevin. Noted. If you give me a URL, I'll have a look at it. Cheers - Peter > On 2017-09-22 04:22 PM, Peter Hiscocks via talk wrote: >> I'm currently developing a program in assembly language, using a Linux >> platform to host the development. The development envi

Re: [GTALUG] (OT) home renovation courses for home owner?

I did a major reno on my house a few years ago. The deal with my wife was that I could buy any power tools that I needed, and I now have a nice collection. This was the front of the house including a large livingroom, hall, stairway and front door area. Complete demolition, rewiring, new windows,

[GTALUG] Unsubscribe from talk list

Peter Hiscocks is deceased. Please remove from list. -- Peter Hiscocks Syscomp Electronic Design Limited, Toronto http://www.syscompdesign.com USB Oscilloscope and Waveform Generator 647-839-0325 --- Talk Mailing List talk@gtalug.org https://gtalug.org/mailman/listinfo/talk