- WD-40 to clean electric contacts? - 10 Updates
- This has me puzzled (resistor change) - 11 Updates
| jjhudak4@gmail.com: Jan 21 09:16AM -0800 On Monday, May 1, 2017 at 12:07:51 PM UTC-4, Micky wrote: > BTW, I want to use the radio, so that's one big reason I want it > fixed. When it stopped playing while she was there, she said, "Oh, > yeah, maybe that's why I bought another one" (She speaks English.) WD40 - it is a desert topping...no, its a floor wax....Hey, its BOTH. LOL - liberally borrowed from an old SNL skit... Which pretty much sums up my feeling about WD40 |
| Phil Allison <pallison49@gmail.com>: Jan 21 10:22AM -0800 > Here we go again! ** With a congenital lunatic like you at the helm. > WD-40 is not: > A lubricant. ** Yes is is. > A contact cleaner. ** Yes it is. > Sticky or gummy. ** One out of three. > It is a 100% volatile light solvent, ** Wrong. The solvent part is about 80%. > mostly ultra-refined kerosene, ** Wrong again. > designed to displace water ** But rarely used for that. > so that whatever it is may be cleaned or lubricated with > something designed for the purpose. ** Half witted bullshit. > A sticky, gummy mess is what happens when existing skunge dissolves > into WD-40 and is then distributed throughout whatever it is > - for which the WD-40 is then blamed. ** Happens a lot. > The stuff is a cheap rinse, quite useful for removing and loosening skunge, rust and other detritus *IN PREPARATION FOR* the correct permanent treatment. ** Absurd crap from a serial bullshitter. > Cleaning audio controls - Not so much unless followed up with > the correct permanent solution thereafter. ** Aside from a new control, there is no "permanent solution". > Peter Wieck **Wot a wanker........ .... Phil |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Jan 21 12:10PM -0800 Phil: As one who is unencumbered by the Thought Process, I guessed you would be the first to chime in with all the myths and magic attributed to a rather mundane product. Here IS what it IS: https://www.wd40.com/files/pdf/msds-wd482671453.pdf Aliphatic Hydrocarbon 64742-47-8 45-50 Petroleum Base Oil 64742-58-1 64742-53-6 64742-56-9 64742-65-0 <25 LVP Aliphatic Hydrocarbon 64742-47-8 12-18 Surfactant Proprietary <2 Non-Hazardous Ingredients Mixture <10% Now go here: https://www.cas.org/support/documentation/chemical-substances/faqs That explains what those numbers are, and how you may trace them. https://chem.nlm.nih.gov/chemidplus/rn/64742-53-6 Here is one to start you off. Find me one of those CAS numbers that is not a 100% volatile compound. Distillates (petroleum), solvent-dewaxed heavy paraffinic - note "DEWAXED" - the wax being the only part that would be non-volatile. Also, whilst you are at it, show me one part or piece that is a CLEANER. There is a surfactant to reduce surface tension between ingredients and help it spread on a surface. Which is quite distinct from a cleaning agent - unless you see rinsing as cleaning. Which it is not. And, of course, anything that is 100% volatile over the short term is by nature not a lubricant. What good is a non-persistent lubricant? Even water can do that. Or Oil of Wintergreen (Methyl salicylate) which is a nifty temporary lubricant, if one can stand the smell. As to Fader Lube, much as I dislike Caig as a company, it ain't half-bad stuff as a persistent control lubricant. Repeat: Unencumbered by the Thought Process. Peter Wieck Melrose Park, PA |
| Phil Allison <pallison49@gmail.com>: Jan 21 12:27PM -0800 > Phil: ** Do not call me "Phil" you posturing asshole. > As one who is unencumbered by the Thought Process, ** Describes bullshitting idiots like YOU perfectly. For the readers: WD-40 is a mixture a hydrocarbon solvent that evaporates quite rapidly and a light mineral oil that does not. Take no notice of the troll calling itself pf - cos he is the worst kind of fool. .... Phil |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Jan 21 12:33PM -0800 Please note the interpolations: On Monday, January 21, 2019 at 3:27:22 PM UTC-5, Phil Allison wrote: > > Phil: > ** Do not call me "Phil" you posturing asshole. OK - Hey Twit: > ** Describes bullshitting idiots like YOU perfectly. > For the readers: > WD-40 is a mixture a hydrocarbon solvent that evaporates quite rapidly and a light mineral oil that does not. Not according to the MSDS. You suggest differently. Show us. The CAS numbers are all there for you to prove your point - which may respond to proper tonsorial attention, or it may not. > Take no notice of the troll calling itself pf - cos he is the worst kind of fool. > .... Twit Peter Wieck Melrose Park, PA |
| Phil Allison <pallison49@gmail.com>: Jan 21 12:38PM -0800 > > ** Do not call me "Phil" you posturing asshole. > OK - Hey Twit: ** You are bullshitting asshole and vile troll. > > For the readers: > > WD-40 is a mixture a hydrocarbon solvent that evaporates quite rapidly and a light mineral oil that does not. > Not according to the MSDS. ** Bullshit. |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Jan 21 12:42PM -0800 Twit: That would be twice. Write it again, and you have presented with the Bellman's Proof. As much a fallacy now as it was then. "Just the place for a Snark!" the Bellman cried, As he landed his crew with care; Supporting each man on the top of the tide By a finger entwined in his hair. "Just the place for a Snark! I have said it twice: That alone should encourage the crew. Just the place for a Snark! I have said it thrice: What I tell you three times is true." Peter Wieck Melrose Park, PA |
| +++ATH0 <news@ringpiece.local>: Jan 21 08:59PM -0800 > Find me one of those CAS numbers that is not a 100% volatile compound. How hot do you have to get it for this to happen? |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Jan 22 04:02AM -0800 On Monday, January 21, 2019 at 11:59:14 PM UTC-5, +++ATH0 wrote: > On 2019-01-21 12:10, pfjw@aol.com wrote: > > Find me one of those CAS numbers that is not a 100% volatile compound. > How hot do you have to get it for this to happen? How do you mean? Volatile at normal (room) temperatures. You may test this for yourself using a paper-towel. Anywhere from a few minutes to a few hours, depending on immediate conditions. Of course it takes longer in cool weather and so forth. Peter Wieck Melrose Park, PA |
| Allodoxaphobia <knock_yourself_out@example.net>: Jan 22 03:02PM Truly, WD-40 is very successful Troll Bait in s.e.r. |
| John-Del <ohger1s@gmail.com>: Jan 21 09:40AM -0800 On Monday, January 21, 2019 at 10:20:31 AM UTC-5, Ralph Mowery wrote: > > So IIUC he changes the R value and it no longer oscillates. Presumably he's thereby changed the loop gain. Where is the surprise? > Could it have been possiable that the new resistor was bad, or maybe the > color code was read wrong so the wrong value was put in ? Prob not "bad", but maybe just way off value (or read incorrectly as you surmised). I've been given tons of old parts including resistor assortments. You can't believe how often the wrong resistor (usually multiplier) was in the wrong drawer. When sorting new old stock carbon carbon comp resistors, I don't sort them by printed value, but actual measured resistance since so many of them are closer to the next value up or down than they are to their own printed value. I only keep them to put in old tube radios for authenticity's sake. |
| ggherold@gmail.com: Jan 21 10:53AM -0800 On Sunday, January 20, 2019 at 6:25:07 PM UTC-5, Phil Hobbs wrote: > > Really need to see a schematic. AFAIK the only functional difference > > between film and carbon is that latter are noisier. > They also have a large negative voltage coefficient. I was going to say they also have a negative temperature coef. But I'd be wrong. A 1.5 kOhm CC in hot air gun and resistance rises. (I know we use to use these as low T (LN2/ liquid He) temp sensors with a resistance that rises with lower temp. (Kinda like it was a thermally activated semi-conductor.)) So I stuck the same 1.5 k resistor into LN2... R increased to 2.1 k! George H. |
| Jon Elson <elson@pico-systems.com>: Jan 21 02:04PM -0600 > I was always under the impression that film resistors are identical > (electrically), and their only difference is appearance. Now I learn > that is not true..... Very high value film resistors are made with some composition sprayed on a ceramic tube, and then an abrasive jet cuts a spiral groove in the film element. That can add inductance, and the higher the resistance value they are aiming for, the more inductance. In tube circuits, it is not unusual to have megohm resistors, so I can see how this could be a problem. Jon |
| Phil Allison <pallison49@gmail.com>: Jan 21 12:16PM -0800 Jon Elson wrote: > Very high value film resistors are made with some composition sprayed on a > ceramic tube, and then an abrasive jet cuts a spiral groove in the film > element. ** In fact, film resistors of all values are made that way. > That can add inductance, and the higher the resistance value they > are aiming for, the more inductance. ** Absolute CRAP !!!! Where does this shite come from ?? ONLY with *low value* resistors can the TINY inducatance created by spiralling become significant and then only at RF frequencies. > In tube circuits, it is not unusual to > have megohm resistors, so I can see how this could be a problem. ** Huh ???? Jumps straight from the rediculous to the absurd. Go away fool. .... Phil |
| Mike Coon <gravity@mjcoon.plus.com>: Jan 21 09:14PM In article <MPG.36afad472e863d9d98994a@news.east.earthlink.net>, rmowery28146@earthlink.net says... > Could it have been possiable that the new resistor was bad, or maybe the > color code was read wrong so the wrong value was put in ? As a lad, scratching through my dad's old box of mixed resistors, looking for a near-enough value to one I needed, I used to get a strong urge to choose any old value and re-paint the colours... Mike. |
| Ralph Mowery <rmowery28146@earthlink.net>: Jan 21 04:37PM -0500 In article <6ea7b3ba-ea28-4479-912d-751f3c703e2b@googlegroups.com>, ohger1s@gmail.com says... > Prob not "bad", but maybe just way off value (or read incorrectly as you surmised). I've been given tons of old parts including resistor assortments. You can't believe how often the wrong resistor (usually multiplier) was in the wrong drawer. > When sorting new old stock carbon carbon comp resistors, I don't sort them by printed value, but actual measured resistance since so many of them are closer to the next value up or down than they are to their own printed value. I only keep them to put in old tube radios for authenticity's sake. I have not done much repairing electronics in a while and had a bunch of 1/2 watt carbon resistors that I had been using. Found out when I ordered an assortment of modern reisitors that they had an extra band where there were 3 digits and the multiplier instead of the 2 digits and multiplier that I was use to. I am well aware that the older carbon resistors often go up in value as they age even if new. I always measure the resistors before I use them. I do the same with the electrolytic capacitors. |
| makolber@yahoo.com: Jan 21 01:38PM -0800 On Monday, January 21, 2019 at 4:14:29 PM UTC-5, Mike Coon wrote: > looking for a near-enough value to one I needed, I used to get a strong > urge to choose any old value and re-paint the colours... > Mike. I find it amazing how I can spot a certain color code in a box of mixed up resistors. I'm looking for yellow purple red. Ah there's one. m |
| Phil Allison <pallison49@gmail.com>: Jan 21 01:51PM -0800 Ralph Mowery wrote: > I am well aware that the older carbon resistors often go up in value as > they age even if new. I always measure the resistors before I use them. > I do the same with the electrolytic capacitors. ** If you find an electro well above its marked capacitance value - what do you conclude ?? ... Phil |
| Sjouke Burry <burrynulnulfour@ppllaanneett.nnll>: Jan 21 11:00PM +0100 On 21-1-2019 22:51, Phil Allison wrote: > ** If you find an electro well above its marked capacitance value - what do you conclude ?? > ... Phil That the oxide layer has degraded, and might be about to fail? |
| John-Del <ohger1s@gmail.com>: Jan 21 03:00PM -0800 > I'm looking for yellow purple red. > Ah there's one. > m Back when I used to carry a big box of tubes (valves) for on site repair, I could spot any tube out of hundreds in seconds. After a long time using them, we don't "read" the tube number as much as just flat out recognize it - just like when reading words. |
| Phil Allison <pallison49@gmail.com>: Jan 21 10:27PM -0800 Sjouke Burry wrote: > > ... Phil > That the oxide layer has degraded, and might be about to fail? ** How do you check for this? ..... Phil |
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