#31
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I live off the grid so I love LED lights. I don't save money per se, but lighting is big part of evening power usage and depth of discharge every night is a big factor in battery bank life. With LEDs I can afford to have more lights on and above my work bench I have four strips of LEDs, so I can light it up like an operating room and still be using much less juice than a regular light bulb. The color difference used to bug me but the colors are getting warmer and I have gotten used to it.
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#32
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I use frosted A and PS type halogen bulbs (standard E26 base). They use a little less energy, ~20 percent, and look damn near the same to me. I just loathe the LED and CFL bulbs. Nothing seems to match the color temperature and rendering index of a good old incandescent or halogen.
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#33
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That cover was done by a number of groups including
Peter Paul & Mary Pete Seeger Kingston Trio and The Brother's Four
__________________
Vacuum tubes are used in Wisconsin to help heat your house. New Web Site under developement ME http://AntiqueTvGuy.com |
#34
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Quote:
These "retro" bulbs are designed to mimic early carbon filament bulbs by either running a tungsten filament way under the rated voltage, or by actually using a carbon filament. Take one of the reproduction bulbs and put it on 220-240 volts, it'll look like a normal tungsten incandescent bulb... because it is. Try that with an authentic Edison bulb from that same era and you'll pop the filament. |
#35
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Quote:
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Audiokarma |
#36
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Banggood also has a US warehouse for top-500 sellers, so some of the lower cost stuff can be in your mailbox in 2-3 days. I wait, and save on shipping.
__________________
Brian USN RET (Avionics / Cal) CET- Consumer Repair and Avionics ('88) "Capacitor Cosmetologist since '79" When fuses go to work, they quit! |
#37
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"Meanwell" is another..... |
#38
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///
Last edited by andy; 11-18-2021 at 05:10 PM. |
#39
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Sylvania soft whites are at my local family dollar.
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#40
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Quote:
That said, there will be some variability between early Mazda lamps, and some of them will doubtlessly be dimmer and show a lower color temperature. I've never seen an operational Mazda that's anywhere near as dim as a modern reproduction however, thus I still maintain that the manufacturers are more likely trying to imitate the carbon bulbs. FWIW, bulbs with actual carbon filaments are available online. I have a few, and they look just like the real McCoy. |
Audiokarma |
#41
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Do the new carbon bulbs exhibit the very low color temperature of this 115 year old bulb, or has this one perhaps increased resistance and dropped temperature over the years? Any radio noise observed from the new carbon bulbs?
http://www.centennialbulb.org/photos.htm jr |
#42
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The new carbon bulbs have a similar color temperature to that Shelby bulb. They're brighter though, if only because the filament in a new bulb hasn't been undergoing evaporation for 100+ years. They're also made in modern standard wattages (25, 40, 60, 75, 100, etc); not the oddball 30 watt rating of the Shelby bulb.
No radio noise whatsoever; a filament type bulb, be it halogen, or a standard incandescent with either a carbon or tungsten filament, shouldn't be putting out any RF... |
#43
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Thanks! I have read in a few very old radio and TV repair books that nearby old carbon bulbs could be a source of RFI... I suspect that these bulbs were failing and acting like noisy carbon resistors. I tested the carbon filament Xmas bulbs that I have near an AM radio and did not detect any noise, however.
jr |
#44
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I've never heard of a carbon type bulb putting out RFI, but your carbon resistor analogy does make sense. I'll have to be on the lookout with my carbon filament repro bulbs. Lately I've taken to testing new bulbs in a lamp near my Trans-Oceanic and running through the bands looking for any blatant RFI. You'd be amazed at the number of CFLs and LED bulbs from "reputable" companies (Phillips, GE, etc) that fail this test spectacularly...
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#45
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Being an avid Dxer, I try to keep my "nest clean" and test new bulbs and appliances for RFI in the AM and shortwave bands. Embarrassingly, I totally missed finding RFI in the FM and low band TV channels caused by several LED floodlamps that I bought. Lesson learned... use the Icom 8500 for scans of these newer devices.
jr |
Audiokarma |
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