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| micky <NONONOmisc07@bigfoot.com>: Oct 11 02:38AM -0400 The antenna that came on my 2005 Toyota is about 16" long and the top ten inches have a wire coiled around in it, like the snake on a caduceus. Does this wire do anything or is it just to impress people? |
| Andy Burns <usenet@andyburns.uk>: Oct 11 08:46AM +0100 micky wrote: > The antenna that came on my 2005 Toyota is about 16" long and the top > ten inches have a wire coiled around in it, like the snake on a > caduceus. Does this wire do anything or is it just to impress people? <https://en.wikipedia.org/wiki/Helical_antenna> |
| tschw10117@gmail.com: Oct 11 08:07AM -0700 On Wednesday, October 11, 2017 at 2:46:30 AM UTC-5, Andy Burns wrote: > > ten inches have a wire coiled around in it, like the snake on a > > caduceus. Does this wire do anything or is it just to impress people? > <https://en.wikipedia.org/wiki/Helical_antenna> Actually, I don't believe that is the purpose. I think I've read that on automotive antennas, the winding is simply a means to reduce wind induced oscillation and noise. Terry |
| Andy Burns <usenet@andyburns.uk>: Oct 11 04:30PM +0100 > I think I've read that on automotive antennas, the winding is simply > a means to reduce wind induced oscillation and noise. Ah Scruton Strakes, interesting if that's the reason ... |
| micky <NONONOmisc07@bigfoot.com>: Oct 11 12:35PM -0400 In sci.electronics.repair, on Wed, 11 Oct 2017 08:07:50 -0700 (PDT), >> <https://en.wikipedia.org/wiki/Helical_antenna> >Actually, I don't believe that is the purpose. I think I've read that on automotive antennas, the winding is simply a means to reduce wind induced oscillation and noise. >Terry Well, either one is a good reason and I'm glad to hear that there is a reason. It's triply important to me to reduce wind noise becausethe car is a convertible, and I'd hear any noise it made, but I should mention that this is my 8th convertible over 50 years and all the other ones had standard antennas, usually in the front** but sometimes in the rear, and I never heard any noise from them. I used to drive on the highway at 75 or even 80, but noise was the reason I dropped my max to 65. Noise seemed to increase sharply over 65mph. So I do notice this, but it wasn't noise from the antenna. It was wind in general, and it applied/s whether the top was up or down. (although later cars have had a top liner, and maybe they would be tolerable above 65mph.) The previous car, also a Solara, a 2000, had a standard electrically retractable antenna, also in the right rear fender, and no noise that I've noticed. So maybe Toyota says it will be more quiet but it's just a gimmick. If so, that would just be my second choice, "to impress people". I still have the previous car until I get the new one repaired if necessary and inspected, so if I can, I will take out both the old and new ones and go 80 for a while and see if I can hear a difference. The old one needs a lot of work but it's still as quiet as it ever was, as the new one is. **One or more GM cars didn't have the round antenna that deliquents used to break off. It's cross-section was shaped like a football. At the very least, it prevented the antenna's use for zip guns. Another was just a wire, not telescoping, not retracting. No one ever broke my antenna however, and the fad seems to have gone away. The custom of slashing tops and tires of cars whose owner one doesn't know and even when not trying to steal eanything seems to have also disappeared. |
| oldschool@tubes.com: Oct 10 11:27PM -0500 On Tue, 10 Oct 2017 06:07:56 -0700 (PDT), "pfjw@aol.com" <pfjw@aol.com> wrote: >I shot on ranges from Texas to New England and points between. Words typed by an ANTI-AMERICAN who according to this sentence, claims he lives in America. An ANTI-AMERICAN who not only prefers to buy China made items, but an ANTI-AMERICAN who promotes China made items as being superior to those made in America. An ANTI-AMERICAN who likely refuses to stand for the Star Spangled Banner, and who kicks dirt in the faces of American war Veterans. My suggestion for this ANTI-AMERICAN: Get the hell out of America. You are not welcome here. Move to China where you belong. |
| "~misfit~" <shaun.at.pukekohe@gmail.com>: Oct 11 07:30PM +1300 > My suggestion for this ANTI-AMERICAN: > Get the hell out of America. You are not welcome here. Move to China > where you belong. Slow down, take your meds then call your carer. (Another clown who thinks that the internet is American!) -- Shaun. "Humans will have advanced a long, long way when religious belief has a cozy little classification in the DSM*." David Melville (in r.a.s.f1) (*Diagnostic and Statistical Manual of Mental Disorders) |
| Rheilly Phoull <froggins@iinet.net.au>: Oct 11 04:29PM +0800 On 11/10/2017 2:30 PM, ~misfit~ wrote: >> where you belong. > Slow down, take your meds then call your carer. > (Another clown who thinks that the internet is American!) Don't forget, this bloke is on a slow learning curve for everything |
| "~misfit~" <shaun.at.pukekohe@gmail.com>: Oct 11 11:05PM +1300 Once upon a time on usenet Rheilly Phoull wrote: >> Slow down, take your meds then call your carer. >> (Another clown who thinks that the internet is American!) > Don't forget, this bloke is on a slow learning curve for everything Yeah, I didn't realise just *how* slow (having only been reading bits of the group for a wee while now). -- Shaun. "Humans will have advanced a long, long way when religious belief has a cozy little classification in the DSM*." David Melville (in r.a.s.f1) (*Diagnostic and Statistical Manual of Mental Disorders) |
| "pfjw@aol.com" <pfjw@aol.com>: Oct 11 09:02AM -0700 Seemed to have hit a nerve. Which is entirely surprising as I really thought OldSchool was less sensitive than a box of rocks - only without the utility. For the record, we have been to China - it is a fascinating country, the little we saw of it, but it is incredibly polluted. Much as the US was during the height of the coal-burning era, and when the rivers ran orange and actually caught on fire. I guess that would be the Old School of environmental management! Peter Wieck Melrose Park, PA |
| Dimitrij Klingbeil <nospam@no-address.com>: Oct 10 11:12PM +0200 > paralleling LEDs or neon bulbs after the limit resistor. If I > disconnect one bulb, the remaining always starts. I doubt this > design would ever work very well....would it? ... This circuit is indeed rather unreliable, one lamp will always fail to start. The reason is that the filaments have a rather low resistance and as soon as one discharge is ionized, it will steal the remaining start pulse from the other lamp through the filament resistance. It will also overload the lamp that works because additional current will be driven into it through the other lamp's filament. There are at least 3 ways to fix this (roughly in order of usefulness): 1. Change the SPST start button to a DPST one, use one pole per lamp. 2. Keep the SPST button but add a DPST relay to start the lamps via the relay contacts and use the button to energize the relay coil. 3. Put a center-tapped inductor between the lamps as shown here: https://imgur.com/a/lCoNK This will present a low impedance to the preheat current (inductor has opposite-phase windings, being essentially shorted) but a much higher impedance to the ignition pulse (inductor has in-phase windings, being essentially open to high frequency components from a pulse). The 1kV varistor is only there to protect the switch contacts from arcing. |
| "pfjw@aol.com" <pfjw@aol.com>: Oct 11 05:23AM -0700 Been reading this thread. https://www.1000bulbs.com/product/363/BA-ICF2S26H1LDK.html?gclid=CjwKCAjwgvfOBRB7EiwAeP7ehi82eLkvCbn5UxyJDlASM35NgXptgtpCfN2zGIKqK1UxDX6gztTn1xoCmwcQAvD_BwE Would one of these fit? If so, install one, pick the lamps you want - and be done with it. All the nostalgia, but fully functional and less energy used. Peter Wieck Melrose Park, PA |
| tabbypurr@gmail.com: Oct 11 05:33AM -0700 > Would one of these fit? If so, install one, pick the lamps you want - and be done with it. All the nostalgia, but fully functional and less energy used. > Peter Wieck > Melrose Park, PA Why do some people rip long lived original stuff out of historic items, fit junk instead, and pay for doing so? Senseless. NT |
| "pfjw@aol.com" <pfjw@aol.com>: Oct 11 05:46AM -0700 > Why do some people rip long lived original stuff out of historic items, fit junk instead, and pay for doing so? Senseless. > NT Long-lived? Sure, the ballast may be long-lived - it is essentially a step-up only device, but the consumables that go with it lasted a fraction of what a modern lamp will last, used far more power and give far less light per watt. So, about 12,000 hours (at best) vs. about 32,000 hours (on average) of longevity. CRI of 69 vs. up to 96. 34 watts (at best) to as little as 25 watts for equivalent output. Much better aging. Seems like a pretty simple choice to me. I would prefer to keep my money for other things than wasting it needlessly on power. Peter Wieck Melrose Park, PA |
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