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janetnkansah1@gmail.com: Mar 13 09:14AM -0700 > Thanks to all who contributed. I changed the RAM (4GB) with a 2GB from a similar Toshiba Statellite (C855D-S5303)and it worked. To my surprise, the 8GB RAM worked in the second laptop but will not work in the first one (-S5356). I have tried several times but will not work. Any explanation? once again thanks to you all and I say more grease to your elbows.

dansabrservices@yahoo.com: Mar 13 09:35AM -0700 > On Tuesday, March 8, 2016 at 11:12:45 PM UTC-8, janetn...@gmail.com wrote: > > Thanks to all who contributed. I changed the RAM (4GB) with a 2GB from a similar Toshiba Statellite (C855D-S5303)and it worked. To my surprise, the 8GB RAM worked in the second laptop but will not work in the first one (-S5356). I have tried several times but will not work. Any explanation? > once again thanks to you all and I say more grease to your elbows.   Each motherboard is designed to handle a specific maximum amount of memory. Carefully look up the specs for the machine that would not work with the 8GB and you will likely see that it has a max of either 2 or 4. The lack of support for the additional "address lines" will cause the memory stick to have 2 locations responding to a single address, thus causing it not to work properly. Think of this as 2 people speaking at the same time. It rarely ends well...   Dan

N_Cook <diverse@tcp.co.uk>: Mar 12 05:37PM On 11/03/2016 21:22, DaveC wrote: > belt in illustration above.)   > How does that result in the same tape speed in both directions?   > Confused...   Aiwa AD WX888 , 1997,I worked on once, spindle to one capstan 2.49mm diameter and the other 2.69mm

legg <legg@nospam.magma.ca>: Mar 12 01:06PM -0500 >> Confused...   >Aiwa AD WX888 , 1997,I worked on once, spindle to one capstan 2.49mm >diameter and the other 2.69mm   Aiwa ADR470, forward flywheel was inside the loop, reverse was outside the loop. Both always driven. choice of pinch rollers determine direction. Flywheel diameters compensate for inside/outside belt diameter. Only speed adjustment was screw-driver inside the motor housing itself.   Harman Kardon HK300 had a single flyheel, spindle impressed alternately on fw or rev through a clutch that was always disintegrating. Same in-the-motor adgustment.   RL

M Philbrook <jamie_ka1lpa@charter.net>: Mar 12 03:11PM -0500 In article <nc0r83$tjh$1@dont-email.me>, ham789@netzero.net says... > the different sizes. That belt tension creates the tape tension. > That's independent of the direction of the rotation. > Tape speed across the heads is always controlled by the drive motor.   Really?   Then what is the use of that little pinch roller and drive shaft that the tape fits between, for?   Jamie

John Larkin <jjlarkin@highlandtechnology.com>: Mar 12 12:19PM -0800 >alternately on fw or rev through a clutch that was always >disintegrating. Same in-the-motor adgustment.   >RL   All those mechanical means of reproducing sound - wax disks, tinfoil, shellac, plastic, wire, tape - were all awful. Chemical photography was a nuisance, too. Ditto typing and carbon paper.         --   John Larkin Highland Technology, Inc   lunatic fringe electronics

Martin Riddle <martin_ridd@verizon.net>: Mar 12 03:21PM -0500 On Sat, 12 Mar 2016 12:19:34 -0800, John Larkin   >All those mechanical means of reproducing sound - wax disks, tinfoil, >shellac, plastic, wire, tape - were all awful. Chemical photography >was a nuisance, too. Ditto typing and carbon paper.   Yeah but look at the bit-error rate you can tolerate. A CD would be worth less with that many errors.     Cheers

DaveC <not@home.cow>: Mar 12 01:04PM -0800 On 12 Mar 2016, John Larkin wrote:   > All those mechanical means of reproducing sound - wax disks, tinfoil, > shellac, plastic, wire, tape - were all awful. Chemical photography > was a nuisance, too. Ditto typing and carbon paper.   Yeah, yeah, yeah.   Gotta have a source platform in order to digitize all that media...

Phil Allison <pallison49@gmail.com>: Mar 12 06:07PM -0800 MJC wrote:   > I certainly was not taking it into account. Probably because it is > movement along the length of the tape and not sideways that gives rise > to speed modulation at the pick-up.   ** Just to rub it in, the SIDEWAYS pressure from the pinch roller forces the capstan shaft against the bearing and inhibits any "chattering". I really works and I see machines ( ie Roland Space Echos) with noticeable play in the capstan bearing that have low W&F.     .... Phil

Phil Allison <pallison49@gmail.com>: Mar 12 06:35PM -0800 DaveC wrote:     > By my mind that is backward: the pinch roller is passive (not being driven). > The capstan shaft (~2mm diam) is driven by capstan flywheel/belt/motor > pulley.   ** Tape speed is determined by the surface speed of the motor pulley divided by the flywheel to capstan diameter ratio.   That ratio might be 20:1 making the pulley surface speed 37.5 inches/S for a standard cassette speed of 1-7/8 inches/S.     .... Phil

jurb6006@gmail.com: Mar 12 10:51PM -0800 >"The capstan is a passive device. The motor pulley diameter via the >*pinch roller* determines the tape speed. The capstan wheel can be >any size at all.   >Peter Wieck >Melrose Park, PA "   Absolutely false. the pinch roller can be any damn diameter is want. The tape speed is controlled by the driven element of the system which is that capstan and is exactly its RPM times its diameter and of course Pi.   Alot of people misunderstand this, especially in the US. Same thing with the idler wheel on a turntable, it can be bigger or smaller, doesn't mean shit. the ratio that matters there is the motor to the rim, which is the driven element. On tape, the speed is precisely controlled by the capstan and that is based on the capstan diameter. ONLY. The pinch roller can be as big as a truck tire and it still goes the same speed.   Y'know, when I was in school they gave me this test. Turns out I was in the 99th percentile in mechanical reasoning. I liked that part of the test, gears n shit. When I started corresponding internationally, I thought that too high. People in some countries are smart as all hell. So in the world maybe I am just a 50. But the thing is, here we got guys who cannot figure out how to change a flat tire. (tyre for you oppressive folks across the pond we had to kick out of our jungle because of your damn taxes)   I did not learn any of this shit in schools. The schools here don't teach that useful information, or as far as I could see any useful information. You can plainly see those flywheels move in opposing directions, but there was a disconnect. I can't fault people for that, it is a deficiency in their education. In this country, peoples' Parents worked too fucking much and thought the schools would teach their kids. Didn't work.   I am not trying to put anyone down, I understand how it is, but the bottom line is this question should never have been asked.

Look165 <look165@numericable.fr>: Mar 13 09:43AM +0100 Wrong !   The linear speed is RPM/60*pi*D (D in meter), eventually *100 if it's given in cm/s ; for a cassette it is 4,75 cm/s. It is determnied by the little axis that tha tape is pinched to.

legg <legg@nospam.magma.ca>: Mar 13 10:18AM -0500 On Sat, 12 Mar 2016 12:19:34 -0800, John Larkin   >All those mechanical means of reproducing sound - wax disks, tinfoil, >shellac, plastic, wire, tape - were all awful. Chemical photography >was a nuisance, too. Ditto typing and carbon paper.   I can't think of a single method of 'reproducing sound' that doesn't involve mechanical means.   Sound is a mechanical phenomenon. Humans use flapping meat.   Perhaps you mean recording? No, still mechanical. Storage? Maybe.   Of course, there's nothing mechanical in electronics, is there...   It's the programme material, the idea and its conception that's important; not the means of conveyance.   RL

DaveC <not@home.cow>: Mar 13 08:27AM -0700 On 12 Mar 2016, jurb6006@gmail.com wrote   > I am not trying to put anyone down, I understand how it is, but the bottom > line is this question should never have been asked.   OK I've learned from you how to determine tape speed by measuring the capstans.   But you have not answered the question (that apparently should never have been asked) why the 2 flywheels are different sizes.   (op)

MJC <gravity@mjcoon.plus.com>: Mar 13 03:34PM In article <2m0beb1lgja42278t1ni529ihahvjsc94q@4ax.com>, legg@nospam.magma.ca says...   > I can't think of a single method of 'reproducing sound' that doesn't > involve mechanical means.   > Sound is a mechanical phenomenon. Humans use flapping meat.   I can imagine a method that used heat to move the air, perhaps with a plasma to make it fast. (Like a modulated lightning flash.) But I cannot be bothered to construct a search to find out if it has been done successfully...   Mike.

Don Bruder <dakidd@sonic.net>: Mar 13 09:22AM -0700 In article <MPG.314f98caaaa273144@news.plus.net>, > be bothered to construct a search to find out if it has been done > successfully...   > Mike.   I recall a conversation from years ago with a *VERY* old theater projectionist, who spoke of what he called "flame speakers". Don't know if it was an artifact of his (at the time) 80+ year old mind going, or reality, but what he described made sense to me on several levels, though I've never bothered to try chasing it down. Apparently, back in the early days of talkies, one method of sound production involved a gas nozzle (unsure if he meant gasoline, or something like propane/LP gas) "tuned" to produce a blue flame (he was very clear on that point - lots of the conversation came back to how he had to tinker with the flame at each showing, otherwise the sound wasn't good) several feet tall in a combustion chamber, into which was shoved a set of tungsten electrodes. The 'trodes were driven at high voltages by any of several amplification methods (frequently varying by theater, if the old guy's tale was to be believed) to charge the plasma of the flame, which apparently caused it to "dance", driving a diaphragm like that of a speaker. Supposedly, amazingly high volumes with very good fidelity could be achieved.   Like I say, I've never actually gone to the effort of tracking it down, and I have no idea if it was a failing mind's invention, or reality, but... <shrug> Seems to me like it COULD work.   -- Security provided by Mssrs Smith and/or Wesson. Brought to you by the letter Q

John-Del <ohger1s@aol.com>: Mar 12 02:07PM -0800 On Saturday, March 12, 2016 at 5:32:28 AM UTC-5, Gareth Magennis wrote:   > Cheers,   > Gareth.   Wow, talk about rekindling a memory I'm sure would have laid dormant until I died.   Back in the 60s, a couple of TV manufacturers used fusible links to protect the filament string. I don't remember the diameter only that we had a small roll of enameled wire of the correct diameter just for this purpose. A suitable size was cut, tinned, sleeved with a fabric tube and soldered between two terminals.   I don't recall why this was done as opposed to using a glass pigtail fuse or socketed fuse for that matter.

hrhofmann@att.net: Mar 12 07:23PM -0800 Back in the 60s, a couple of TV manufacturers used fusible links to protect the filament string. I don't remember the diameter only that we had a small roll of enameled wire of the correct diameter just for this purpose. A suitable size was cut, tinned, sleeved with a fabric tube and soldered between two terminals.   I don't recall why this was done as opposed to using a glass pigtail fuse or socketed fuse for that matter.   Any recollection of which manufacturers used that method of fusing?

Paul Drahn <pdrahn@webformixair.com>: Mar 12 09:17PM -0800 On 3/12/2016 2:32 AM, Gareth Magennis wrote: > http://www.kv2audio.com/products/esr-series/esr2800.html   > Cheers,   > Gareth. The reason is the circuit has a BIG inrush current. A regular fuse material takes a bit of time to open, but if the current is below, but close to the rated current, the fuse material will soften and sag, and get thinner after many uses. A copper wire will not do this, but will melt at the rated current you found.   My plant uses three 200 amp services with meters. They are fused for 200 amps with silver fuses. They do blow at a small percent above 200 amps and almost instantly, and cost $75 each to replace.   Paul

John-Del <ohger1s@aol.com>: Mar 13 07:26AM -0700 > Back in the 60s, a couple of TV manufacturers used fusible links to protect the filament string. I don't remember the diameter only that we had a small roll of enameled wire of the correct diameter just for this purpose. A suitable size was cut, tinned, sleeved with a fabric tube and soldered between two terminals.   > I don't recall why this was done as opposed to using a glass pigtail fuse or socketed fuse for that matter.   > Any recollection of which manufacturers used that method of fusing?   Snort... "recollection"? I wear a name tag so I remember who I am. But I KNOW my older brother will remember not only who used it but what gauge of wire as well. I'll post back later today.

theredchickennugget4@gmail.com: Mar 13 01:45AM -0800 I've burnt out the vdr1 01 and I'm wondering where I may be able to get another one from or if I can bypass it as I know the reason to the overload in power...?

hrhofmann@att.net: Mar 12 07:28PM -0800 I just rinse using soap and water for water-based rollers. For oil-based paint, I use some paint remover worked into the roller, and cleaned out with whatever solvent the paint remover said to use as a follow-up to using the remover on anything.   Frankly, it is a lot easier and not a lot more $$ to just get a new roller, when you consider the time and effort and $$ to buy the removal chemicals.

Jeff Liebermann <jeffl@cruzio.com>: Mar 12 08:20PM -0800 >I just rinse using soap and water for water-based rollers. (...)   You missed the part where the OP mentioned that it's for rejuvenating a PRINTER roller, not a paint roller.   -- 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

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