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8V 40mA bi-pin lamp (Marantz)
Hello all,
Anyone know of a generic lamp that is an 8 volt, 40 mA bipin type? These are used as source indicators in receivers like the Marantz 2270 and 2275. The 6.3 volt 7380 is readily available, but won't last long running on 8 volts, and gets too hot as well. Of course a reliable vendor who sells them would be just as good. Many thanks, Tim Schwartz Bristol Electronics |
8V 40mA bi-pin lamp (Marantz)
"Tim Schwartz" Anyone know of a generic lamp that is an 8 volt, 40 mA bipin type? These are used as source indicators in receivers like the Marantz 2270 and 2275. ** Gee - a small bi-pin lamp is just begging to get replaced with a white LED. ..... Phil |
8V 40mA bi-pin lamp (Marantz)
On 09/04/2013 06:52 AM, Tim Schwartz wrote:
Hello all, Anyone know of a generic lamp that is an 8 volt, 40 mA bipin type? These are used as source indicators in receivers like the Marantz 2270 and 2275. The 6.3 volt 7380 is readily available, but won't last long running on 8 volts, and gets too hot as well. Of course a reliable vendor who sells them would be just as good. Many thanks, Tim Schwartz Bristol Electronics An LED and a resistor should work best. |
8V 40mA bi-pin lamp (Marantz)
On 09/04/2013 07:29 AM, Phil Allison wrote:
"Tim Schwartz" Anyone know of a generic lamp that is an 8 volt, 40 mA bipin type? These are used as source indicators in receivers like the Marantz 2270 and 2275. ** Gee - a small bi-pin lamp is just begging to get replaced with a white LED. .... Phil What he said! |
8V 40mA bi-pin lamp (Marantz)
On 09/04/2013 6:52 AM, Tim Schwartz wrote:
Hello all, Anyone know of a generic lamp that is an 8 volt, 40 mA bipin type? These are used as source indicators in receivers like the Marantz 2270 and 2275. The 6.3 volt 7380 is readily available, but won't last long running on 8 volts, and gets too hot as well. Of course a reliable vendor who sells them would be just as good. Many thanks, Tim Schwartz Bristol Electronics eBay or use 6V bulbs and a dropping resistor... Or LEDs as Phil suggested. John :-#)# -- (Please post followups or tech inquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
8V 40mA bi-pin lamp (Marantz)
On 4/09/2013 11:52 PM, Tim Schwartz wrote:
Hello all, Anyone know of a generic lamp that is an 8 volt, 40 mA bipin type? These are used as source indicators in receivers like the Marantz 2270 and 2275. The 6.3 volt 7380 is readily available, but won't last long running on 8 volts, and gets too hot as well. Of course a reliable vendor who sells them would be just as good. Many thanks, Tim Schwartz Bristol Electronics **I've found that owners of those old Marantz recievers are only too happy to spend some extra bucks on replacing ALL lamps with LEDs. That includes the stereo and source indicator lamps. The payoffs are huge. They include: * Far lower power consumption and consequent minimised damage to the plastic housing that contains the dial back-lighting. * Far, far more attractive dial lighting, if the LEDs used are blue ones. * Indefinite (or at least very long) life-span for the lighting. I've found that Lumileds™ work extremely well, due to their wide dispersion characteristics. It requires some extra effort for the repairer though. You can purchase plug-n-play replacements from eBay, if you can't be bothered doing your own work. -- Trevor Wilson www.rageaudio.com.au |
8V 40mA bi-pin lamp (Marantz)
"Trevor Wilson" wrote in message ... On 4/09/2013 11:52 PM, Tim Schwartz wrote: Hello all, Anyone know of a generic lamp that is an 8 volt, 40 mA bipin type? These are used as source indicators in receivers like the Marantz 2270 and 2275. The 6.3 volt 7380 is readily available, but won't last long running on 8 volts, and gets too hot as well. Of course a reliable vendor who sells them would be just as good. Many thanks, Tim Schwartz Bristol Electronics **I've found that owners of those old Marantz recievers are only too happy to spend some extra bucks on replacing ALL lamps with LEDs. That includes the stereo and source indicator lamps. The payoffs are huge. They include: * Far lower power consumption and consequent minimised damage to the plastic housing that contains the dial back-lighting. * Far, far more attractive dial lighting, if the LEDs used are blue ones. * Indefinite (or at least very long) life-span for the lighting. I've found that Lumileds™ work extremely well, due to their wide dispersion characteristics. It requires some extra effort for the repairer though. You can purchase plug-n-play replacements from eBay, if you can't be bothered doing your own work. -- Trevor Wilson www.rageaudio.com.au Although of course, care needs to be taken that the lamps are actually being fed with DC. In many items using pea bulb indicators and back illumination, they are fed with AC straight off the tranny, or sometimes via a series resistor whether AC or DC. This means that if you drop the current by swapping to LEDs, the voltage will rise. I have also found that it is hard to match the 'colour' of small bulbs with LEDs, particularly when they are deliberately under-run to produce a more 'lemon' coloured light. Things like tuning meters just don't look right if the light behind them is too white. And even with wide angle LEDs, the light dispersion is sometimes not enough to 'fill' an area with light, resulting in uneven illumination. I recently replaced a number of the feature lamps on my pinball table's playfield with LEDs. To replace the ones that shone through clear plastic diffusers, so were normally 'white', I used warm white LEDs with a water clear lens. I then diffused the dome by rubbing it with some very fine wet and dry paper, and then added some yellow felt tip. This took the output from warm white to a colour very similar to a tungsten lamp, which produced illumination much closer to the original bulb. Arfa |
8V 40mA bi-pin lamp (Marantz)
"Arfa Daily" Although of course, care needs to be taken that the lamps are actually being fed with DC. ** LEDs are, believe it or not, DIODES !! So they can be used on low voltage ( ie 6.3V ) AC supplies with only a series resistor. Put two of 'em in reverse parallel and the supply voltage can be much higher. They come in all colours too: red, orange, yellow, green, blue and purple. Some ingenuity may be needed to get the best result in each case, but it well worth not having to search high and low for special, low current tiny bulbs. .... Phil |
8V 40mA bi-pin lamp (Marantz)
Phil Allison kom med følgende:
"Arfa Daily" Although of course, care needs to be taken that the lamps are actually being fed with DC. ** LEDs are, believe it or not, DIODES !! Having LEDs run on one half-phase of AC can cause flicker. It can be seen on cheap christmas decorations, which flicker annoyingly, especially at the perifical vision, which is optimized to see quick movements of e.g. predators. If you look at the light directly, the flicker is less or not noticable, because at that angle the eye wants details, not speed. It might be less noticable at 60Hz than the european 50Hz ac. So it might be advisable to rectify the ac either full wave or just a diode and a cap. IMHO the lights turning off slowly also looks more cool than an led turning off abruptly :-) Leif -- Husk kørelys bagpå, hvis din bilfabrikant har taget den idiotiske beslutning at undlade det. |
8V 40mA bi-pin lamp (Marantz)
"Leif Neland" "Arfa Daily" Although of course, care needs to be taken that the lamps are actually being fed with DC. ** LEDs are, believe it or not, DIODES !! Having LEDs run on one half-phase of AC can cause flicker. It can be seen on cheap christmas decorations, which flicker annoyingly, especially at the perifical vision, which is optimized to see quick movements of e.g. predators. If you look at the light directly, the flicker is less or not noticable, because at that angle the eye wants details, not speed. ** For typical red bezels or indicator lights, it is simply not visible. It might be less noticable at 60Hz than the european 50Hz ac. ** I am posting from Aussie land - we have 50 Hz. So it might be advisable to rectify the ac either full wave or just a diode and a cap. ** The lack of visible flicker was surprising to me. It tried red and white leds with the same result. IMHO the lights turning off slowly also looks more cool than an led turning off abruptly :-) ** Neon bezels have been going off fast since, like forever. .... Phil |
8V 40mA bi-pin lamp (Marantz)
"Phil Allison" wrote in message ... "Arfa Daily" Although of course, care needs to be taken that the lamps are actually being fed with DC. ** LEDs are, believe it or not, DIODES !! So they can be used on low voltage ( ie 6.3V ) AC supplies with only a series resistor. Yes. However, they are not renowned for having a very high PIV, so whilst you would probably get away with just a series resistor at low AC, you just might not with AC a bit higher than that ... The point I was making was that although a simple series resistor is fine if the lamp supply is DC, it *may* not be if it is AC, and you shouldn't just assume that it is one or the other. As I said before you snipped the context of my comment in order to make your point ... Put two of 'em in reverse parallel and the supply voltage can be much higher. Agreed They come in all colours too: red, orange, yellow, green, blue and purple. Some ingenuity may be needed to get the best result in each case, but it well worth not having to search high and low for special, low current tiny bulbs. ... Phil |
8V 40mA bi-pin lamp (Marantz)
"Phil Allison" wrote in message ... "Leif Neland" "Arfa Daily" Although of course, care needs to be taken that the lamps are actually being fed with DC. ** LEDs are, believe it or not, DIODES !! Having LEDs run on one half-phase of AC can cause flicker. It can be seen on cheap christmas decorations, which flicker annoyingly, especially at the perifical vision, which is optimized to see quick movements of e.g. predators. If you look at the light directly, the flicker is less or not noticable, because at that angle the eye wants details, not speed. ** For typical red bezels or indicator lights, it is simply not visible. It is to some of us. I find the PWM'd LED flicker of road works cone-top beacons very annoying, as well as the flicker from PWM'd LED stop and tail lights on some makes of car. My wife doesn't notice it all, however. Admittedly, the effect is worse at the periphery of vision, but I still see it looking head on at the source. That said, if two LEDs are used in inverse parallel as you suggested, rather than paralleling with a conventional diode or just relying on the reverse blocking of the LED, flicker is not an issue, as each LED will produce light on opposite half cycles. It might be less noticable at 60Hz than the european 50Hz ac. ** I am posting from Aussie land - we have 50 Hz. So it might be advisable to rectify the ac either full wave or just a diode and a cap. ** The lack of visible flicker was surprising to me. It tried red and white leds with the same result. IMHO the lights turning off slowly also looks more cool than an led turning off abruptly :-) ** Neon bezels have been going off fast since, like forever. That is true, but I think that Lief was more referring to things like meter and tuning scale backlighting, rather than on off indicators. Arfa ... Phil |
8V 40mA bi-pin lamp (Marantz)
** For typical red bezels or indicator lights, it is simply not visible. It is to some of us. I find the PWM'd LED flicker of road works cone-top beacons very annoying, as well as the flicker from PWM'd LED stop and tail lights on some makes of car. My wife doesn't notice it all, however. Admittedly, the effect is worse at the periphery of vision, but I still see it looking head on at the source. Although I don't find this particularly annoying, I very much notice it too. For me the effect manifests itself as a line of bright strobing when my eyes move horizontally past the flickering LED's. Like * * * * * * * * * * * * In the old days you could get a very similar effect by injesting halluconegenic mushrooms or a tab of acid. Gareth. |
8V 40mA bi-pin lamp (Marantz)
On 09/04/2013 06:14 PM, Arfa Daily wrote:
Although of course, care needs to be taken that the lamps are actually being fed with DC. LEDs run fine on AC, as long as the voltage and current are within limits. |
8V 40mA bi-pin lamp (Marantz)
On 09/05/2013 05:50 AM, Arfa Daily wrote:
"Phil Allison" wrote in message ... "Arfa Daily" Although of course, care needs to be taken that the lamps are actually being fed with DC. ** LEDs are, believe it or not, DIODES !! So they can be used on low voltage ( ie 6.3V ) AC supplies with only a series resistor. Yes. However, they are not renowned for having a very high PIV, so whilst you would probably get away with just a series resistor at low AC, you just might not with AC a bit higher than that ... The point I was making was that although a simple series resistor is fine if the lamp supply is DC, it *may* not be if it is AC, and you shouldn't just assume that it is one or the other. As I said before you snipped the context of my comment in order to make your point ... Put two of 'em in reverse parallel and the supply voltage can be much higher. Agreed They come in all colours too: red, orange, yellow, green, blue and purple. Some ingenuity may be needed to get the best result in each case, but it well worth not having to search high and low for special, low current tiny bulbs. ... Phil https://duckduckgo.com/?t=lm&q=led+s...tor+calculator |
8V 40mA bi-pin lamp (Marantz)
On 5/09/2013 11:14 AM, Arfa Daily wrote:
"Trevor Wilson" wrote in message ... On 4/09/2013 11:52 PM, Tim Schwartz wrote: Hello all, Anyone know of a generic lamp that is an 8 volt, 40 mA bipin type? These are used as source indicators in receivers like the Marantz 2270 and 2275. The 6.3 volt 7380 is readily available, but won't last long running on 8 volts, and gets too hot as well. Of course a reliable vendor who sells them would be just as good. Many thanks, Tim Schwartz Bristol Electronics **I've found that owners of those old Marantz recievers are only too happy to spend some extra bucks on replacing ALL lamps with LEDs. That includes the stereo and source indicator lamps. The payoffs are huge. They include: * Far lower power consumption and consequent minimised damage to the plastic housing that contains the dial back-lighting. * Far, far more attractive dial lighting, if the LEDs used are blue ones. * Indefinite (or at least very long) life-span for the lighting. I've found that Lumileds™ work extremely well, due to their wide dispersion characteristics. It requires some extra effort for the repairer though. You can purchase plug-n-play replacements from eBay, if you can't be bothered doing your own work. -- Trevor Wilson www.rageaudio.com.au Although of course, care needs to be taken that the lamps are actually being fed with DC. In many items using pea bulb indicators and back illumination, they are fed with AC straight off the tranny, or sometimes via a series resistor whether AC or DC. This means that if you drop the current by swapping to LEDs, the voltage will rise. I have also found that it is hard to match the 'colour' of small bulbs with LEDs, particularly when they are deliberately under-run to produce a more 'lemon' coloured light. Things like tuning meters just don't look right if the light behind them is too white. And even with wide angle LEDs, the light dispersion is sometimes not enough to 'fill' an area with light, resulting in uneven illumination. **All quite true, however, I was specifically referring to the Marantz products and Lumileds™. The Marantz blue dial looks stunning when backlit via blue LEDs. Far, far better than the original lamps and with vastly lower currents and, consequently, heat. The original lamps are rated at 8 Volts @ 200ma each. In some Marantz models, there is 7 or 8 of the suckers! The heat generated warps the plastic housing containing the backlighting. Lumleds™ deliver an even 120 degree spread of light and are thus an excellent choice for backlighting in these circumstances. Particularly given they can be run at around 10ma each. I recently replaced a number of the feature lamps on my pinball table's playfield with LEDs. To replace the ones that shone through clear plastic diffusers, so were normally 'white', I used warm white LEDs with a water clear lens. I then diffused the dome by rubbing it with some very fine wet and dry paper, and then added some yellow felt tip. This took the output from warm white to a colour very similar to a tungsten lamp, which produced illumination much closer to the original bulb. Arfa **Cool. -- Trevor Wilson www.rageaudio.com.au |
8V 40mA bi-pin lamp (Marantz)
"Arfa Dickhead Daily" ** For typical red bezels or indicator lights, it is simply not visible. It is to some of us. I find the PWM'd LED flicker of road works cone-top beacons very annoying, ** WTF has that got to do with my comment ????????????????? **** of you pathetic pommy fool. .... Phil |
8V 40mA bi-pin lamp (Marantz)
"Arfa Daily" ** LEDs are, believe it or not, DIODES !! So they can be used on low voltage ( ie 6.3V ) AC supplies with only a series resistor. Yes. However, they are not renowned for having a very high PIV, so whilst you would probably get away with just a series resistor at low AC, ** Jesus ****ING CHRIST - this IDIOT just DOES NOT READ !!!!!!!!! |
8V 40mA bi-pin lamp (Marantz)
"Phil Allison" wrote in message ... "Arfa Dickhead Daily" ** For typical red bezels or indicator lights, it is simply not visible. It is to some of us. I find the PWM'd LED flicker of road works cone-top beacons very annoying, ** WTF has that got to do with my comment ????????????????? **** of you pathetic pommy fool. ... Phil You never understand **** all, do you ? You're so busy cutting context to try and make your half-arsed and witless comments look clever, you never manage to look behind the actual words. You commented about flicker at 25 Hz that's "simply not visible" with a red bezel. My comment was that LED flicker at that frequency might not be noticeable to *you*, but was to some people. If you knew anything about anything, you would have understood that traffic cone lights use LEDs, flashed at around 30 Hz, as do the stop and tail lights of some cars. These to me, and apparently Gareth, exhibit a very visible flicker. Since your AC connected LED would be flashing at a similar rate, the flicker is likely to be just as visible to some people, irrespective of whether it is being viewed through a red bezel. And you call me a pathetic fool ? At least I'm not a dopey **** who can't spell, like you. Now **** off back under your rock, unless you've got anything of any sense to say. Arfa |
8V 40mA bi-pin lamp (Marantz)
"Phil Allison" wrote in message ... "Arfa Daily" ** LEDs are, believe it or not, DIODES !! So they can be used on low voltage ( ie 6.3V ) AC supplies with only a series resistor. Yes. However, they are not renowned for having a very high PIV, so whilst you would probably get away with just a series resistor at low AC, ** Jesus ****ING CHRIST - this IDIOT just DOES NOT READ !!!!!!!!! No, it's YOU who either does not read, does not understand, or chooses not to. All you do is snip indiscriminately to try and make yourself look clever. Be advised that you fail royally in this endeavour. All you actually look is an ever greater **** ... Arfa |
8V 40mA bi-pin lamp (Marantz)
"dave" wrote in message m... On 09/04/2013 06:14 PM, Arfa Daily wrote: Although of course, care needs to be taken that the lamps are actually being fed with DC. LEDs run fine on AC, as long as the voltage and current are within limits. Which is exactly what I said. If running them on AC, they are fine as long as the series resistor is of sufficient value to limit the forward current, and the reverse voltage on the opposite half cycle does not exceed the rather low PIV that LEDs tend to have. That aspect can be mitigated by having a conventional diode in inverse parallel, but this will result in a flicker at half the supply frequency that Phil can't see, but some of us can, or by putting another LED in inverse parallel, which will conduct on the opposite half cycle producing light, and clamping the reverse voltage across the first diode to the value of the forward voltage of the second diode, different, of course for different colours. The inverse is also true that the first diode will clamp the reverse voltage across the second diode on the opposite half cycle. Arfa |
8V 40mA bi-pin lamp (Marantz)
On Fri, 6 Sep 2013 01:31:39 +0100, "Arfa Daily"
wrote: That aspect can be mitigated by having a conventional diode in inverse parallel, but this will result in a flicker at half the supply frequency that Phil can't see, but some of us can, or by putting another LED in inverse parallel, which will conduct on the opposite half cycle producing light, and clamping the reverse voltage across the first diode to the value of the forward voltage of the second diode, different, of course for different colours. Surely, it will be at the _SAME_ frequency but exist as a light source for only half the period (duty cycle). N'est-ce pas? |
8V 40mA bi-pin lamp (Marantz)
On Wednesday, September 4, 2013 6:52:36 AM UTC-7, Tim Schwartz wrote:
Hello all, Anyone know of a generic lamp that is an 8 volt, 40 mA bipin type? These are used as source indicators in receivers like the Marantz 2270 and 2275. The 6.3 volt 7380 is readily available, but won't last long running on 8 volts, and gets too hot as well. Are you sure they are bi-pin lamps? I own a couple Marantz receivers of that vintage (2215 and 2275), and they used "fuse lamps" which have the same dimensions as a 3AG fuse. Of course a reliable vendor who sells them would be just as good. The fuse lamps are readily available on eBay. You can also get them from All Electronics in Van Nuys, California; the 8V lamps are $1 each or $8.50 for 10, while 6V and 12V lamps are slightly cheaper. |
8V 40mA bi-pin lamp (Marantz)
Phil Allison sendte dette med sin computer:
"Arfa Dickhead Daily" ** For typical red bezels or indicator lights, it is simply not visible. It is to some of us. I find the PWM'd LED flicker of road works cone-top beacons very annoying, ** WTF has that got to do with my comment ????????????????? **** of you pathetic pommy fool. Have you had your Coprolalia disgnosed properly? The treatment could be botox at the vocal cords (would it help for typing? Possibly in the hands instead) or brain surgery. Do you know how you got it? If we know your bad behaviour is caused by a disease, it is easier to forgive. Leif -- Husk kørelys bagpå, hvis din bilfabrikant har taget den idiotiske beslutning at undlade det. |
8V 40mA bi-pin lamp (Marantz)
En el artículo , Leif Neland
escribió: The treatment could be botox at the vocal cords (would it help for typing? Possibly in the hands instead) or brain surgery. He'd have to have a brain in the first place to operate on. -- (\_/) (='.'=) (")_(") |
8V 40mA bi-pin lamp (Marantz)
"Arfa Dickhead Daily"
** For typical red bezels or indicator lights, it is simply not visible. It is to some of us. I find the PWM'd LED flicker of road works cone-top beacons very annoying, ** WTF has that got to do with my comment ????????????????? **** of you pathetic pommy fool. If you knew anything about anything, you would have understood that traffic cone lights use LEDs, flashed at around 30 Hz, ** I live in Sydney. The subject is LED bezels. I was speaking from REAL experience - not making stupid guesess like you. And YOU are the man with defective colour vision and gods know how many other genetic defects. BTW: How many red LEDs have YOU used to replace the bezel lamps in Fender amps ?? There is no sign of flicker. Surprising but true. .... Phil |
8V 40mA bi-pin lamp (Marantz)
"Arfa ****WIT Daily" "Phil Allison" ** LEDs are, believe it or not, DIODES !! So they can be used on low voltage ( ie 6.3V ) AC supplies with only a series resistor. Yes. However, they are not renowned for having a very high PIV, so whilst you would probably get away with just a series resistor at low AC, ** Jesus ****ING CHRIST - this IDIOT just DOES NOT READ !!!!!!!!! No, it's YOU who either does not read, ** FFS - you REPEATED the info in MY post back to me !!! You pompous, bull****ting, ****ing nut case. ..... Phil |
8V 40mA bi-pin lamp (Marantz)
"Arfa Daily" "dave" Arfa Daily wrote: Although of course, care needs to be taken that the lamps are actually being fed with DC. LEDs run fine on AC, as long as the voltage and current are within limits. Which is exactly what I said. ** But not in the post that "dave" replied to. My god you are a bull****ting ass. .... Phil |
8V 40mA bi-pin lamp (Marantz)
"Black Iccy" "Arfa ****wit Daily" That aspect can be mitigated by having a conventional diode in inverse parallel, but this will result in a flicker at half the supply frequency that Phil can't see, Surely, it will be at the _SAME_ frequency but exist as a light source for only half the period (duty cycle). N'est-ce pas? ** AD is a colossal, bull****ting moron. The repetition rate is 50Hz or 60Hz, same as the field rate of a regular ( interlaced) TV. Got an sine wave generator on your bench with 2.5 V rms available ? Connect a LED across the output and sweep the frequency across the range from 20 to 100Hz or so and see what happens. .... Phil |
8V 40mA bi-pin lamp (Marantz)
Phil Allison kom med denne ide:
"Black Iccy" "Arfa ****wit Daily" That aspect can be mitigated by having a conventional diode in inverse parallel, but this will result in a flicker at half the supply frequency that Phil can't see, Surely, it will be at the _SAME_ frequency but exist as a light source for only half the period (duty cycle). N'est-ce pas? ** AD is a colossal, bull****ting moron. The repetition rate is 50Hz or 60Hz, same as the field rate of a regular ( interlaced) TV. If you are talking about CRT-TV's, the phosphor(?) coating have afterglow, to reduce flickering. On the corner of the eye, the flickering is visible for some people on some monitors. The afterglow time varies depending on what the monitor is constructed for. The old IBB green monitors had a very long afterglow to make the image comfortable for wieving. Got an sine wave generator on your bench with 2.5 V rms available ? Connect a LED across the output and sweep the frequency across the range from 20 to 100Hz or so and see what happens. When doing so, try different wavelengths, intensities and viewing angles. Flicker sensitivity varies between people. When you are tired, you are more sensitive. Perhaps your condition makes you less sensitive for flicker and proper behaviour. Leif -- Husk kørelys bagpå, hvis din bilfabrikant har taget den idiotiske beslutning at undlade det. |
8V 40mA bi-pin lamp (Marantz)
"Leif Neland" ** AD is a colossal, bull****ting moron. ** Same as you - pig brain. The repetition rate is 50Hz or 60Hz, same as the field rate of a regular ( interlaced) TV. If you are talking about CRT-TV's, ** Yep. Got an sine wave generator on your bench with 2.5 V rms available ? Connect a LED across the output and sweep the frequency across the range from 20 to 100Hz or so and see what happens. When doing so, ** No **YOU** need to do the ****ing test !!!!!!! Cos I have done it many times already You ****ing, asinine, Kraut pile of ****. ..... Phil |
8V 40mA bi-pin lamp (Marantz)
On Fri, 6 Sep 2013 21:06:40 +1000 "Phil Allison" wrote
in Message id: : "Leif Neland" ** AD is a colossal, bull****ting moron. ** Same as you - pig brain. The repetition rate is 50Hz or 60Hz, same as the field rate of a regular ( interlaced) TV. If you are talking about CRT-TV's, ** Yep. Got an sine wave generator on your bench with 2.5 V rms available ? Connect a LED across the output and sweep the frequency across the range from 20 to 100Hz or so and see what happens. When doing so, ** No **YOU** need to do the ****ing test !!!!!!! Cos I have done it many times already You ****ing, asinine, Kraut pile of ****. Now, now little Phildo... Your mummy (she ain't a very good lay), won't approve of language Like that. Especially from a mouth freshly filled with Daddy's cum. |
8V 40mA bi-pin lamp (Marantz)
"Bill Palmer" ** **** off you damn troll |
8V 40mA bi-pin lamp (Marantz)
On Fri, 6 Sep 2013 21:27:45 +1000 "Phil Allison" wrote
in Message id: : "Bill Palmer" ** **** off you damn troll 100,000 people die every day, why aren't you one of them? |
8V 40mA bi-pin lamp (Marantz)
"Bill Palmer = human excreta " ** **** off you damn troll 100,000 people die every day, ** QED. .... Phil |
8V 40mA bi-pin lamp (Marantz)
On 09/05/2013 05:19 PM, Arfa Daily wrote:
"Phil Allison" wrote in message ... "Arfa Dickhead Daily" ** For typical red bezels or indicator lights, it is simply not visible. It is to some of us. I find the PWM'd LED flicker of road works cone-top beacons very annoying, If you see "flicker" at 30 Hz you must hate television. |
8V 40mA bi-pin lamp (Marantz)
"dave" If you see "flicker" at 30 Hz you must hate television. ** Huh ??? The refresh rate of CRT based TVs is at least 50Hz - because of interlaced scanning. There is still massive strobing if you wave an object in front of one, as the dots / stripes go dark long before the next refresh cycle. A LED ( any colour ) pulsed at 30Hz flickers obviously - this stops at about 40 to 45 Hz. .... Phil |
8V 40mA bi-pin lamp (Marantz)
|
8V 40mA bi-pin lamp (Marantz)
On 09/06/2013 05:35 AM, Phil Allison wrote:
"dave" If you see "flicker" at 30 Hz you must hate television. ** Huh ??? The refresh rate of CRT based TVs is at least 50Hz - because of interlaced scanning. There is still massive strobing if you wave an object in front of one, as the dots / stripes go dark long before the next refresh cycle. A LED ( any colour ) pulsed at 30Hz flickers obviously - this stops at about 40 to 45 Hz. ... Phil TVs today go down to 24 FPS progressive. |
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