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N_Cook <diverse@tcp.co.uk>: Nov 01 05:23PM Reason for the tab insulator. 20mm high heatsink 2 mm from the metal chassis, so only arctan(2/20) = 6 degree, bending of the pcb would let 340V touch ground.

N_Cook <diverse@tcp.co.uk>: Nov 02 09:01AM On 01/11/2014 15:21, Gareth Magennis wrote: > I rang Peavey to try and quickly establish if they knew of anything that > might be overloading the chip, or was it just the chip.   > Gareth.   Going by the curved over top of the sillypad, this has been subjected to substantial heat. This is not a mixer-amp, just mixer loads of apamps and a big DSP chip, so why the heat? Vents are either side of the chassis with no venting local to the smps which is hemmed in between chassis base and main pcb

whit3rd <whit3rd@gmail.com>: Nov 01 11:26AM -0700 On Friday, October 31, 2014 9:01:02 AM UTC-7, N_Cook wrote:   > So whatever the NTE or CGE label says, the underlying IC would be > original Sanyo/NEC/Harris or whatever of the 1980s or even 1970s?   Yes. The mold markings give away the origin, sometimes, but the print on the package is always the NTE part number and logo. One presumes that NTE has a warehouse of new-old-stock parts.

N_Cook <diverse@tcp.co.uk>: Nov 01 06:54PM On 01/11/2014 18:26, whit3rd wrote:   > Yes. The mold markings give away the origin, sometimes, but the > print on the package is always the NTE part number and logo. > One presumes that NTE has a warehouse of new-old-stock parts.   I wonder how they disguise the inevitable age-corrossion of the pins. Unless you stored them in vacuum, any sort of storing even in a heated building, UK anyway, the pins go grey with age. Perhaps they do some sandblasting and then solder-pot dipping

jurb6006@gmail.com: Nov 02 01:40AM -0700 They generally bagged them up individually. It surely helped. I am sure this was not thir intention, to get their money (not) like 35 years later, but oh well.

krw@attt.bizz: Nov 01 06:14PM -0400 On Fri, 31 Oct 2014 20:38:05 -0400, "Michael A. Terrell" >> they were just ahead of their time. It also must have been a very >> small high school.   >1400   That's about the same size as our HS. I can't believe any principal would be so stupid as to believe classrooms could be emptied, people jam halls, all mixing on their way to the next class, and file into the next class in 3 minutes, particularly when the clocks don't work (ours almost always did - Simplex and IBM, same clocks). Add to that the "need" for bathroom passes, and he must have been someone current administrations could look up to.

krw@attt.bizz: Nov 01 06:17PM -0400 On Sat, 01 Nov 2014 08:59:41 -0400, Stormin Mormon >would make more sense. Need to get up and >walk around. I don't think this sounds >practical.   +1   An hour is about all one can expect for an attention span. My son had classes that went two hours but they were really a combination of two (English and history, or some the like). They were combined classes with about twice the size, with two teachers. They had plenty of breaks and changes of topics during the classes.   Add in the current ADD "epidemic" and it can't work.

krw@attt.bizz: Nov 01 06:20PM -0400 On Sat, 01 Nov 2014 03:12:25 -0400, J Burns <burns4@nowhere.com> wrote:     >Now I remember. Starting around 7th grade, my schools did have >bathrooms. No tubs, just communal showers. It was compulsory to bathe >together twice a week.   Hmm, perhaps you're not Abe. Et tu Brute? ;-)

"Michael A. Terrell" <mike.terrell@earthlink.net>: Nov 01 06:28PM -0400 > (ours almost always did - Simplex and IBM, same clocks). Add to that > the "need" for bathroom passes, and he must have been someone current > administrations could look up to.   He was a liberal loon. You couldn't get from one end of the campus to the other in three minutes, with the crowded hallways. I averaged 4:15 from science class, to electronics, then 4:00 back to the new wing for the next class.     This was an IBM clock system, but parts of it were over 50 years old. The oldest part of the school was built in the 1800s.     -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge.

"Michael A. Terrell" <mike.terrell@earthlink.net>: Nov 01 06:30PM -0400 J Burns wrote:   > He could have saved detention teachers a lot of unpleasantness if he'd > checked with me or the Naval Observatory before tampering with the > grandfather clock.     That situation didn't last. Everyone was pissed off about it, and I'm sure that the school board heard from a lot of parents over it.     -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge.

"Danny D." <dannydiamico@gmail.com>: Nov 01 10:53PM Stormin Mormon wrote, on Sat, 01 Nov 2014 08:59:41 -0400:   > That sounds like a lot too long to keep students at a desk. Half hour to > 45 mins would make more sense. Need to get up and walk around. I don't > think this sounds practical.   As a matter of fact, the teacher (who is brand new to teaching) asked me for advice on how to keep the kids *engaged* for the entire hour and forty five minutes.   She, knowing I'm good at googling, asked me to find some math games, and I also gave her a big bag of extra Halloween chocolate I had bought, which she is going to use to "reward" the kids when she catches them being good.   She also knows my strong feeling that math isn't taught correctly, which is a very long story, but the short of it is that math needs to be taught from the practical problem standpoint.   For example, I suggested she think from the perspective of two kids throwing rocks into a lake. What happens, mathematically. Or two kids trying to kick a soccer ball into a net, while clearing the height of the other kids. Things like that might keep the kids engaged, if, I suggested, she *start* a problem that the kids might be interested in, and then, working backwards, she bring in the math, and, in the end, the equation and graphs (and, ug, proofs).   I told her to think of all the math that applies to that problem (or any problem involving two kids trying to figure something out that two kids would want to figure out), and to teach that way. She told me that is a *lot* of work, and I did not disagree.   So, that might take years.   In the meantime, there are always the math games we found, which might help to exercise the kids' bodies, every 30 minutes, for a five-minute game.

"Danny D." <dannydiamico@gmail.com>: Nov 01 10:59PM Ed Pawlowski wrote, on Sat, 01 Nov 2014 15:40:17 -0400:   > Perfect opportunity for a pervert teacher, coach, or principle to get > his jollies.   When I wrestled, in high school, the coach taught us how to cheat on the initial doctor's appointment (by not eating for days beforehand), so that we could then lose even more weight than we were supposed to, and the coach provided a list of the "bath houses" where we could go to in order to take a 'sauna' with a full set of rubber clothes that the coach supplied.   So, we'd exercise in this bath-house sauna, little knowing (heck, we were only freshmen and sophomores in high school), that the bathhouses are *filled* to the brim with gay old men.   When they started asking me to take off my sweatshirt and rubberized gear, as I exercised in the sauna, another guy, I remember it clearly, told the first guy to shut the heck up and leave me alone. I was befuddled why these guys wanted me to take off my gear, as the whole point was to sweat to lose weight (whether for the doctor's assessment or for the match itself).   I only learned later what those encounters were all about. Jeezus. And they say the sports environment today is all about cheating. That was cheating, and, now that I had kids, I NEVER let them believe in a coach like that (mine, an ex marine, told me "I'm your mother, your father, and Jesus Christ ... and ... somehow ... I trusted him).   Kids are stupid. I was a kid. I was stupid.

"Danny D." <dannydiamico@gmail.com>: Nov 01 11:00PM J Burns wrote, on Sat, 01 Nov 2014 18:11:42 -0400:   > We didn't take our gym clothes home to wash, not even socks   I almost never had to go to gym, because I was on sports year round. So, I missed that experience.   However, if you've ever *smelled* the varsity locker room, you'll know the meaning of "gym socks" all too well!

"John Grossbohlin" <nospam.grossboj@nospam.earthlink.net>: Nov 01 07:19PM -0400 "Stormin Mormon" wrote in message news:1P45w.55721$uw3.5982@fx10.iad...     >would make more sense. Need to get up and >walk around. I don't think this sounds >practical.     Along those lines...   http://www.washingtonpost.com/blogs/answer-sheet/wp/2014/10/24/teacher-spends-two-days-as-a-student-and-is-shocked-at-what-she-learned/?wpisrc=pdwmk   Saw this article in other publications too...

J Burns <burns4@nowhere.com>: Nov 01 07:23PM -0400 On 11/1/14, 6:30 PM, Michael A. Terrell wrote: >> grandfather clock.   > That situation didn't last. Everyone was pissed off about it, and I'm > sure that the school board heard from a lot of parents over it.   I guess we had three minutes, with synchronized clocks. Nobody stayed after class to ask the teacher a question because there wasn't time. I didn't use my locker for books because there wasn't time between classes.   Gym was the dangerous class. The teacher's wristwatch wasn't wired to the school clocks, so we might be dismissed a little late. It took time to open our locker, undress, close our locker, grab a towel, shower, dry, open our locker, dress, close our locker, throw our towel in the bin, walk to the classroom building, and climb a couple of flights of stairs.   The yearbook hyped our monitors, maintaining law and order. Being a monitor was an excuse to arrive late and leave early, but I didn't see their purpose. Nobody had time to misbehave between classes. I wondered if they got the idea for the armbands from the Hitler Youth.

J Burns <burns4@nowhere.com>: Nov 01 08:36PM -0400 >> bathrooms. No tubs, just communal showers. It was compulsory to bathe >> together twice a week.   > Hmm, perhaps you're not Abe. Et tu Brute? ;-)   You would have been safe at our school. Strict policy against knives in the shower. Most blades were carbon steel, which could rust.

"Danny D." <dannydiamico@gmail.com>: Nov 02 12:52AM John Grossbohlin wrote, on Sat, 01 Nov 2014 19:19:24 -0400:     > http://www.washingtonpost.com/blogs/answer-sheet/wp/2014/10/24/ > teacher-spends-two-days-as-a-student-and-is-shocked-at-what- > she-learned/?wpisrc=pdwmk   Here's a quick four-sentence takeaway ... 1. Those classes were short, at only 1 hour and 15 minutes. 2. Students don't move about, once in class. 3. It's mostly lecture. 4. The kids are constantly chastised.

Stormin Mormon <cayoung61@hotmail.com>: Nov 01 09:11PM -0400 On 11/1/2014 8:36 PM, J Burns wrote:   >> Hmm, perhaps you're not Abe. Et tu Brute? ;-)   > You would have been safe at our school. Strict policy against knives in > the shower. Most blades were carbon steel, which could rust.   When showers are outlawed, only perverts will have showers.   - . Christopher A. Young Learn about Jesus www.lds.org .

"Danny D." <dannydiamico@gmail.com>: Nov 02 03:09AM Bill wrote, on Sat, 01 Nov 2014 18:19:12 -0400:   > secret to making it work is to include some group activity such as a > worksheet, so that the students are not just (not) listening to a > lecture.   I did help her create some worksheets, as she was unfamiliar with manipulating Microsoft Office to make graphs.   I ended up making tables, and it took a while to figure out how to make the boxes the same with and length, and then how to add the x and y axis, as I couldn't get the tables to "group" with the drawn axis even myself.   In the end, I gave up on Microsoft Word simply because I couldn't get the non-groupable items to move together, as a single unit, when text was changed.   So, I opted for PowerPoint, instead of Word, and made a few templates for her for her worksheets. She put the kids in groups, and they moved the chairs together (forcing them to stand up) and they worked together.   That gives the kids "some" exercise.

J Burns <burns4@nowhere.com>: Nov 02 01:08AM -0500 On 11/1/14, 7:19 PM, John Grossbohlin wrote:   > Saw this article in other publications too...   Yeah! What was I supposed to do in a 50-minute lecture when my attention span was under a minute? The fact that lectures were endless repetition showed that teachers knew we were unable to pay attention. They were putting us in a position where we had to sit still and pretend to pay attention all day long.   Each teacher would proudly tell us how many hours we were expected to spend on daily homework for that class. Add it up, and if you did nothing but attend classes and do your homework, there might be time for 4 hours' sleep at night.   It sure seemed abusive to me, but this article says teachers really are that stupid.

jurb6006@gmail.com: Nov 02 01:35AM -0700 >"Our school had a Western Union clock system governed by a grandfather >clock in the office. Occasionally we'd see classroom clocks jump because >the principal was adjusting the grandfather clock. "   We'd LUUUUV to sae clocks jump !   https://www.youtube.com/watch?v=Xe1a1wHxTyo

Phil Allison <pallison49@gmail.com>: Nov 01 08:58PM -0700 Hi,   some of you may be familiar with this all Chinese design badged "Fender".   http://edu.znate.ru/tw_files2/urls_2/8/d-7315/7315_html_m3d62dc1a.jpg   Odd looking but quite functional with a pair of 80W Hitachi mosfet amplifiers and inside a regulated SMPS in the bottom of main unit.   One arrive last week *dripping water* out the main unit and both speakers - seems it had been caught in a flood about 10 days previously and was immersed up to the line of the XLR sockets.   ( Why do people think it OK to let the water remain inside and do its worst for so long ?? )   Got the speakers apart first, removed the four drivers, towelled off the surface water and let the lot sit out in the sun for a couple of days. It had become rather smelly and the only fix I know is sunlight.   Next, the main unit ( also smelly) had to be completely disassembled, a huge number of screws involved, to gain access the SMPS which has its own enclosure right at the bottom - it was still soaking wet.   Pulled out the PCB and fan and gave that a good wash in the sink followed by a half hour in the oven at about 80C. The PCB need scrubbing to remove the white residue of dissolving solder - as did the amp PCB.   Used up plenty of PCB spray cleaner and then applied WD40 with a soft brush to every metal surface and connector. Then left it all out in the sun too.   Tested the SMPS first with a dummy load and blow me down it worked fine. Attached the rest of the electronics and they worked OK too. Re-assembled and tested the speakers and found they had also survived.   Naturally, I let the main unit run for many hours to make sure there were no issues with hidden moisture.   On informing the customer of my success he asked:   " was there much to do" ?       .... Phil

jurb6006@gmail.com: Nov 01 12:50PM -0700 I guess I owe you an admission of wrong.   Not any apology, because that is a story I read on the internet and the skepticism kept me from believing it. There is no shortage of bullshit on the net.   Calling osmeone a foll for not automaticall believeing something like that is not appropriate. I don't mean ettiquette, I mean logic. After all, look how many Darwin awards have been debunked.

jurb6006@gmail.com: Nov 01 01:12PM -0700 I did have a look :   "URBAN MYTHS 126: PAVLOV'S DOG AND BONE   A FRIEND of a friend wrote to her telephone company to register a vehement and most unusual complaint. The elderly widow was forever being scolded by her relatives for not answering her phone. She claimed they never rang. When the telephone did ring, it was invariably preceded by three loud barks, in intervals, from her dog in the yard. Yet when she got to the receiver there would be no one on the line.     'How does my Spot know when the phone's going to ring,' fumed the irate customer, 'when you don't even feed my calls through?' An investigator duly arrived. He began testing the woman's hearing by muttering insults under his breath. Each time, she shouted, 'I heard that,' so the fault clearly didn't lie with her. The handset was functioning normally as well. Eventually he hit on the problem. He discovered that the dog in the yard had been fastened to a post that also carried the telephone cable. The animal's chain had worn through the cable and chafed at the core, which carried a small electrical current to operate the system.   Each time someone rang up it caused a fur-raising, tingling sensation in the dog's neck, causing it to jump up and bark.   On the third pulse, the cumulative stimulation reached the mutt's bladder. The resultant puddle connecting with the wire was somehow enough to complete a circuit, and the phone would then ring for hours on end of its own volition.   The engineer made good the repair. 'There,' he said, patting the dog. 'No charge.'"   What would you think ?

jurb6006@gmail.com: Nov 01 01:13PM -0700 http://msgboard.snopes.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=74;t=001085;p=1   Is the source BTW.

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