- Interesting ... - 13 Updates
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- Ampex F4460 reel to reel. - 1 Update
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- Interesting ... - 2 Updates
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Vir Campestris <vir.campestris@invalid.invalid>: Jan 04 09:29PM On 03/01/2015 21:50, Bob Eager wrote: >> Please spell carats correctly and cease the apostrophe abuse so that we >> don't have to wrap your lines... > ITYM 'carets'! "Carats" ties up better with "diamond brackets" :P Andy |
"Arfa Daily" <arfa.daily@ntlworld.com>: Jan 05 01:20AM > glass and silicone goop. There's no way in hell it was cheaper than a box > of incandescent bulbs, especially when you factor in the part where > electricity itself isn't really that expensive in the US. When we owned a day nursery, it was located in a Victorian school building that we bought. It was back in the early 80s. When we bought the place, it had all old pendant fixtures in the rooms - probably something like 12 in each room, so you can imagine what the electricity bill would have been like. I replaced them all with some CFLs called "Dulux EL Globes". I would guess that each was about 4 - 5" diameter and was completely translucent. They took a while to warm up to full brightness, but the light output from them was excellent, and of a very pleasant colour. They ran 5 days a week from 7:30 in the morning until gone 6pm, and the failure rate was very very low. They weren't cheap, mind ... Arfa |
"Arfa Daily" <arfa.daily@ntlworld.com>: Jan 05 01:32AM "Rod Speed" <rod.speed.aaa@gmail.com> wrote in message news:cgp2v5FbqhpU1@mid.individual.net... >>> Mindlessly superficial. >> Much like you then ... > You never could bullshit your way out of a wet paper bag. BWAHAHAHA ! All that 'good' stuff you've just written, then you spot my (one line) comment - 2 days late I might add - and you revert exactly to type, as we have all come to know and expect of you. Good old Rod, never one to let us down old boy, are you ? :-) I suppose the paper bag is wet because I live on a soggy little island, right ? Arfa |
"Arfa Daily" <arfa.daily@ntlworld.com>: Jan 05 02:02AM > best guess(tm) here is that he's still having problems adjusting to > LED lighting and needs a new reason to not use LED lighting. Am I at > least close? Not really ... I don't like CFL lighting - that's well known. I am still reserving judgment on LED lighting. My local supermarket recently had a major refit, and all of their ceiling fluorescent fittings were replaced with linear LED arrays, so at first, you don't notice that anything has changed. When I did realise, I was surprised that the quality and intensity of the light in terms of how well it illuminated the sales floor, was every bit as good as the original fluorescents. They also have replaced the car park floodlights with LED arrays, and these are crap compared to the metal halide fixtures that they replaced. My hairdresser has replaced all of the mini spots in his ceiling fixtures with equivalent LED bulbs. They produce a good amount of light, and the colour is not bad, but they are unpleasantly bright to look at. They are also not a very good shape and don't fit the fixtures terribly well. I'm not a great fan of LED street lighting either, as I think it is harsh in comparison to say LPS, and nothing like as effective at penetrating fog, as it is polychromatic light. It also doesn't seem as good at producing 'even' street lighting as LPS or even HPS is, if you can get past the yellow colour of those types. As everyone also knows, I am not a fan of substitute lighting technologies brought in for eco-bollox reasons. CFLs are not as good as incandescents, and never will be in terms of light quality, low temperature performance, and start-up time. LEDs are better in all of those areas, but still have a long way to go before I would consider them to be a replacement technology for domestic incandescent bulbs, rather than the substitute which they currently are. The 'eco' credentials for this lighting, as spouted by the politicians and commentators, is always far too simplistic, and designed to convince the great unwashed that they must be better because they consume so much less energy. No account is taken of the energy budgets to make these things in the first place, or to dispose of them (properly) when they fail. The supermarket sales floor lights are a good example of what can be achieved with commercial LED lighting. Where you are not trying to reproduce sunlight - such as with airport runway and taxiway lighting - then they are, without doubt, the best and most reliable technology for the job. There are may LED traffic signals in the area where I live, and they seem to work extremely well, so another area where LEDs are appropriate and good at the job. All of the above, we have discussed on these two groups over the years, as the technology has changed and evolved. I merely thought that this article, by someone who seems to be in a position to make valid comments on the subject, had an interesting alternative view of the common wisdom that is generally pushed. Simply that, Jeff. Hence the reason that I titled the post "Interesting..." ... |
"Arfa Daily" <arfa.daily@ntlworld.com>: Jan 05 02:07AM "Rod Speed" <rod.speed.aaa@gmail.com> wrote in message news:cgqrjqFpufaU1@mid.individual.net... > even tho it is a rather uncommon name. >> Arfa is an intelligent and knowledgeable person. > He clearly isn't on that particular question. What particular question ? > more reliable than they used to be even tho they have vastly more > components > than they used to have. In spades with computer cpus and memory alone. You are unbelievable. How did you manage to extrapolate that mindless crap from my original post ? Sheesh ! Twat ... Arfa |
"Arfa Daily" <arfa.daily@ntlworld.com>: Jan 05 02:15AM "Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message news:54A84133.3060300@electrooptical.net... > thing on the eyes that I've ever used. > Cheers > Phil Hobbs Go Phil, go ! :-) Arfa |
"Arfa Daily" <arfa.daily@ntlworld.com>: Jan 05 02:21AM "Henry Mydlarz" <mydhen@optusnet.com.au> wrote in message news:43Lpw.845586$No4.116130@fx19.iad... > them does light up occasionally. Unfortunately I could not find the > receipt for them. > Henry Hmmm. From your aspect, point made then, I would guess ?? Arfa |
"Rod Speed" <rod.speed.aaa@gmail.com>: Jan 05 01:37PM +1100 Some gutless fuckwit desperately cowering behind Arfa Daily <arfa.daily@ntlworld.com> wrote just the puerile shit that always pours from the back of it when its got done like a fucking dinner, as it always is by everyone. |
"Rod Speed" <rod.speed.aaa@gmail.com>: Jan 05 01:49PM +1100 Arfa Daily <arfa.daily@ntlworld.com> wrote >>> Arfa is an intelligent and knowledgeable person. >> He clearly isn't on that particular question. > What particular question ? The stupid claim that article he posted made about the purported problem with a lot more components in a LED light instead of the single one with the incandescent it replaced. >> they used to be even tho they have vastly more components than >> they used to have. In spades with computer cpus and memory alone. > You are unbelievable. We'll see... > How did you manage to extrapolate that > mindless crap from my original post ? The article you mindlessly posted clearly claimed that when there are lots more components in the LED light than in the incandescent light it replaced, that that was absolutely certain to guarantee that it would have a shorter life than the incandescent it replaced. Pigs arse it does. <reams of your puerile shit any 2 year old could leave for dead flushed where it belongs> |
Jeff Liebermann <jeffl@cruzio.com>: Jan 04 07:37PM -0800 On Sat, 03 Jan 2015 14:21:23 -0500, Phil Hobbs >thing on the eyes that I've ever used. >Cheers >Phil Hobbs 100 watt incandescent bulb on a desk lamp? Doesn't that get rather warm and possibly hot enough to shorten the life of the bulb? I also use two lights, but differently. One is an area flood light, usually on the ceiling. The other is a desk lamp with a flood light to light up whatever I'm working on. If the work is large, two flood lights. This is what I've been using for close work: <http://www.11junk.com/jeffl/pics/drivel/slides/luxo-flood.html> (Oops. I just noticed it's a Ledu, not a Luxo.) The flood light is a 120 degree "Lights of America" 2003LEDP38-65K LED flood light purchased at Costco. 5 watts consumption and 45 watt "equivalent" output. The manufacturer has apparently never heard of lumens: <http://ledlightbulbsreviews.blogspot.com/2010/05/lights-of-america-2003ledp38-65k-led.html> <http://www.amazon.com/Lights-America-2003LEDP38-65K-8-Standard-Outdoor/product-reviews/B001BPYGQ2> Problems. It's not sealed and the lens is slowly getting clouded, probably from volatiles inside the PCB remaining from soldering and sloppy cleaning. I haven't had any burnout problems, but that might be luck. Still, it puts out plenty of light, is great for close work, and doesn't burn my hair every time I accidentally put my head under the light. If you plan to use a flood light, I suggest finding a different lamp. PAR20 or PAR30 seem about right for desk lamps. I also bought a few of these color changing LED lights: <http://www.ebay.com/itm/350973170093> I tried to determine which color or color combination was best for computing, reading, tinkering, etc. No conclusion yet because the little 3W light doesn't really put out enough lumens (140 lm) to be considered a reading or work light. Still, it was fun to play with. -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
mike <ham789@netzero.net>: Jan 05 02:37AM -0800 On 1/4/2015 6:02 PM, Arfa Daily wrote: > I don't like CFL lighting - that's well known. I am still reserving > judgment on LED lighting. I wonder what we'd be saying about incandescents if they were replacing LED lights we'd been using for a century? I can understand if you're a photographer. For the rest of us, it's no big deal. Things change. |
mike <ham789@netzero.net>: Jan 05 02:42AM -0800 On 1/4/2015 7:37 PM, Jeff Liebermann wrote: > 100 watt incandescent bulb on a desk lamp? Doesn't that get rather > warm and possibly hot enough to shorten the life of the bulb? By how much? What's the added surface temperature? Add that to the filament temperature. What's the percentage increase in filament temperature? More likely, it shortens the life of the phenolic socket and switch. |
dave <ricketzz@earthlink.net>: Jan 05 07:20AM -0800 On 01/05/2015 03:06 AM, Huge wrote: > imagine we're about 30% CFL, 30% halogen and 30% GLS (incandescent)) now. >> Things change. > Not always for the better, or for the right reasons. I can't afford to waste money on nostalgia. LEDs rule! |
JW <none@dev.null>: Jan 05 06:37AM -0500 On Wed, 31 Dec 2014 15:06:00 -0800 (PST) Phil Allison <pallison49@gmail.com> wrote in Message id: >** Function generators are shit awful for audio repair work, the sine wave is full of high order harmonics that get exaggerated by the treble boost in many guitar amp models. Sounds bad through the speaker and looks bad on a scope. It doesn't meet all your specs, but what about a Keithley 2015? They can be had for about $500 on Ebay... |
dave <ricketzz@earthlink.net>: Jan 05 07:18AM -0800 On 01/05/2015 03:37 AM, JW wrote: >> ** Function generators are shit awful for audio repair work, the sine wave is full of high order harmonics that get exaggerated by the treble boost in many guitar amp models. Sounds bad through the speaker and looks bad on a scope. > It doesn't meet all your specs, but what about a Keithley 2015? They can > be had for about $500 on Ebay... Look on the bay for a Heath IG-58 (several variations). They are very low distortion for the price. (Typically 0.04 to 0.02 % THD, depending on level and frequency). You can get a guaranteed one for $125 or less. Or wait for a bargain and grab one for $50. The Elenco with the big pointer is around 1%. Your smartphone can be used, too. I have not measured the distortion of such apps. |
dave <ricketzz@earthlink.net>: Jan 05 07:12AM -0800 On 01/03/2015 04:10 PM, Phil Allison wrote: > ** You must be thinking of pinch rollers used in VCRs which often have an internal ball race. > The vast majority RR and echo machine rollers simply have a plain bearing running on a shaft of about 4 or 5mm dia. > All the Roland 1/4 inch tape echos have a roller that is 12mm x 28mm running on a 6mm shaft. The rotating capstan controls the speed, the roller makes sure the tape doesn't slip. There used to be a couple high end machines without pinch rollers from Japan. I spent many years fixing Ampex 600, 300, 351, 440, PR10; Otari MX5050; ATC, Spartamatic, ITC cart machines. If the reel tension is right the roller barely does anything. I love when you turn the Space Echoes up too high and they make their own music. |
"Gareth Magennis" <gareth.magennis@ntlworld.com>: Jan 04 09:33PM "Tom Miller" wrote in message news:m824n3$9vo$1@dont-email.me... "amdx" <nojunk@knology.net> wrote in message news:m823ht$628$2@dont-email.me... > Any Ideas? > Thanks, Dad Find a (large as possible) PA hire company that wants some free or poorly paid labour. This will be a lot of fun. (loading trucks, going to gigs, roadying hard and enjoying it) If he is really interested, he will closely watch and talk to the engineers, learn a huge amount he never knew existed, and eventually be trusted to take on live sound work and be properly paid for it. Gareth. |
dave <ricketzz@earthlink.net>: Jan 05 07:04AM -0800 > job market, and graduates often have less than no vocational skills. > And because neither students nor employers like the major, why > encourage its study? College is not a place for job training. It is to make the individual a better citizen, as much as anything. To the extent an educated populace benefits society as a whole, state universities should be free. Plumbing and changing bedpans are the big jobs going forward; don't need a degree for either. |
Huge <Huge@nowhere.much.invalid>: Jan 05 09:22AM > was surprised that the quality and intensity of the light in terms of how > well it illuminated the sales floor, was every bit as good as the original > fluorescents. Ditto. Indeed, I didn't notice until we were leaving. -- Today is Setting Orange, the 5th day of Chaos in the YOLD 3181 Celebrate Mungday I don't have an attitude problem. If you have a problem with my attitude, that's your problem. |
Huge <Huge@nowhere.much.invalid>: Jan 05 11:06AM > LED lights we'd been using for a century? > I can understand if you're a photographer. > For the rest of us, it's no big deal. Please don't include me in "the rest of us". I too think CFL lighting is very poor, and have switched back to incandescents in a few places (I imagine we're about 30% CFL, 30% halogen and 30% GLS (incandescent)) now. > Things change. Not always for the better, or for the right reasons. -- Today is Setting Orange, the 5th day of Chaos in the YOLD 3181 Celebrate Mungday I don't have an attitude problem. If you have a problem with my attitude, that's your problem. |
whit3rd <whit3rd@gmail.com>: Jan 04 02:34PM -0800 On Saturday, January 3, 2015 11:19:53 AM UTC-8, David Farber wrote: > Starting from the coaxial wire from the wall: > The coax goes to the ISP provided Cisco cable modem. My ISP now prohibits > customer owned modems so that's why I'm using theirs and not my Netgear box. ... > Ideally, I'd like to return to the condition where each router/gateway has > its own ip address, be able to access both devices' (Netgear and Airlink) > setup menu, and get internet access. You need to detach the routers other than the ISP-supplied main router, and program it/them to extend the existing DHCP services of the new main router instead of hosting their own local network(s). Or, you need to pick one main router, and change the ISP-provided unit to be a transparent bridge to that main router. |
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