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Jasen Betts <jasen@xnet.co.nz>: Apr 02 02:42AM >>Thanks!   >>John :-#)#   > What sort of stuff did they have?   "Write-only memory"   -- This email has not been checked by half-arsed antivirus software

oldschool@tubes.com: Apr 02 12:27AM -0500 >I expect someone has worked out the wattage. It will be an astronomical >number.   >Mike.   I have a feeling that if anyone touched the sun, they would be electrocuted.....

MJC <gravity@mjcoon.plus.com>: Apr 02 11:01AM +0100 In article <5msvdclgl2isrvu4hhlcgf7tfdoot98mef@4ax.com>, oldschool@tubes.com says...   > Happy April Fools Day!   I hope you guys enjoy this ancient specification writen by someone at my old employer, a computer manufacturer once upon a time...   https://www.dropbox.com/s/pagmxe035pv4fno/1900%20SERIES.mht?dl=0   While you're there, this is a circuit I designed back in the early 1960s for a rather strange purpose. I'd be interested to know if anyone has seen it before.   https://www.dropbox.com/s/wf5iiujs9hnpjtz/CEDRIC-multivibrator.jpg?dl=0   Mike.

Andy Burns <usenet@andyburns.uk>: Apr 02 11:09AM +0100 MJC wrote:   > I hope you guys enjoy this ancient specification writen by someone at my > old employer, a computer manufacturer once upon a time...   > https://www.dropbox.com/s/pagmxe035pv4fno/1900%20SERIES.mht?dl=0   Looks like a load of old balls to me.

amdx <nojunk@knology.net>: Apr 02 07:43AM -0500 On 4/1/2017 9:42 PM, Jasen Betts wrote:   >>> John :-#)#   >> What sort of stuff did they have?   > "Write-only memory"   Screen print function, monitor mounted on top of a copy machine. Mikek   --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Mar 31 09:48PM -0400 On 04/01/2017 07:05 PM, Clifford Heath wrote:   > I wish I had a reason to learn photonics so I could justify spending > some neurons to read your book..   > Thanks.   Well, only half of it is about optics. ;)   Cheers   Phil Hobbs   -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics   160 North State Road #203 Briarcliff Manor NY 10510   hobbs at electrooptical dot net http://electrooptical.net

Phil Allison <pallison49@gmail.com>: Apr 01 09:19PM -0700 David Farber wrote:   > The motor does turn but it vibrates above and beyond any motor I've ever > encountered. (It would be great if you installed in one of those chairs that > give you a back massage.)   ** That is normal - for the reason I just gave you.     The explanation in this video, > https://www.youtube.com/watch?v=M0W9pzBZ-DI says the motor should have a DC > input resistance of 200 ohms.   ** The video id from the UK where the AC power is 240V.     > Though I can understand there will be > variances between every motor, this motor measures 20 ohms between the input > terminals.   ** That is also normal.   > The line draw as registered by my Sencore PR57 is just under 100 > watts at 120VAC. The sticker on the motor says 40W.   ** Your Sencore does not measure true watts as it does not take account of power factor which could easily be 0.5   All the numbers you quote are OK.       .... Phil

"pfjw@aol.com" <pfjw@aol.com>: Apr 02 04:33AM -0700 What Phil does not understand is how label requirements work in the US. If the motor is labeled "40W", then the maximum free turning running (not starting) load should not exceed 40W, full stop. That part will have a UR label and manufacturers use the nameplate rating to calculate, in turn the entire draw of the appliance for its label. Imagine if any random part might pull a constant 2.2 x its rating on a whim?   If it is pulling 100 watts, and if it is vibrating, then it is clearly damaged and should be replaced. Even low-quality appliances such as most Whirlpool products are, typically, would not tolerate a vibrating motor in that application. I suspect that a motor bearing has gone oval. So the shaft is vibrating against the housing when it spins and starting is very hard, if at all   Again, replace it.   Peter Wieck Melrose Park, PA

"David Farber" <farberbear.unspam@aol.com>: Apr 02 09:36AM -0700 > Again, replace it.   > Peter Wieck > Melrose Park, PA   Hi Peter,   This morning I hooked it up via a Kill A Watt meter.whose reading adjusts for power factor. It read between 23-32 watts. When I gently put my finger on the center of the spinning impeller to see how it would be affected, it became even more erratic. I will replace it.   Thanks for your reply. -- David Farber Los Osos, CA

elvillafane@gmail.com: Apr 02 08:59AM -0700

Chris Jones <lugnut808@spam.yahoo.com>: Apr 03 12:26AM +1000 > should try with the ones I really want back ups of. Any advice? > Thanks, > Eric   As I discovered in my youth, EPROMS can go into a socket two ways around. One way is good, the other way is bad. When the supply and ground pins are swapped like this, the bond wire melts and you can even see the melted remains through the quartz window, which somehow makes it more frustrating. If you are going to make this mistake, at least do it AFTER you have a copy of the contents!

"fynnashba@yahoo.com" <fynnashba@yahoo.com>: Apr 02 05:37AM -0700 > l am working on a refrigerator board which uses STR-W6000S power ic The resistor to pin 3 of the ic is burnt beyond recognition. l tried to find out from the manufacturers data sheet but all the application circuits there have no value marked on the resistors. can anyone give a typical value or how to figure out this value?   Thanks l have changed the ic and try that value too

Foxs Mercantile <jdangus@att.net>: Apr 02 01:15AM -0500 Anybody got one they want to get rid of, or links to them on line?   Specifically for the Octal (8-pin) based mercury wetted relays.   -- Jeff-1.0 wa6fwi http://www.foxsmercantile.com   --- This email has been checked for viruses by AVG. http://www.avg.com

"Michael A. Terrell" <mike.terrell@earthlink.net>: Apr 02 12:11AM -0400 > It ain't nohow the only one.   > Peter Wieck > Melrose Park, PA   So what, there are lots of cheap toys, just like the overpriced garbage that your audiofools drool over. Have you ever seen a real, high production Pick-N-Place machine with 20 or more component feeders?   How will a magnet handle the positioning of large, complex components? Why don't you go on the news:sci.electronics.design newsgroup so that you can tell the people who own and use real machines what fools they are, to buy real tools. You were ranting about buying cheap H-F tools the other day. You couldn't afford a real P-N-P machine, or the reflow oven and all the other related machines for a modern PCB manufacturing process.   Have you ever hand placed hundreds of tightly spaced components on a real PC board? How about positioning ICs with hundreds of leads spaced .015" apart, without causing solder bridges? How about hand placing 0201 components?   Stick to your real estate job and shotgunning 50 year old amplifiers, where you know a few things.   -- Never piss off an Engineer!   They don't get mad.   They don't get even.   They go for over unity! ;-)

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