Recent content by Thetasigma
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Explain "stepdown"
No such thing as a free lunch. If you want constant runtime at a given level, you want somewhere in the ballpark of 200-500 lumens with a modern emitter and a decent size host, 18650 or so much should do the trick. If you want a smaller host and/or more lumens, at some point you will have to...- Thetasigma
- Post #7
- Forum: LED Flashlights
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Sigma Customs: Corvus
Afternoon everyone, due to changed circumstances and lack of progress I am abandoning the lists here and on FB. Being manually machined and lacking large swathes of time to machine, I am no longer able to fulfill a large list and will be switching back to lotto sales via my Facebook group, Sigma...- Thetasigma
- Post #85
- Forum: Homemade and Modified Flashlights Discussion
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why so much hate towards electric cars?
Electric is not yet practical IMO. It makes long term sense in hand with fuel cell or on demand hydrogen, but none are mass market ready today. The component metals required with li-ion are troublesome, and the outcome of the Russian situation will potentially affect production scalability of...- Thetasigma
- Post #319
- Forum: The Cafe
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Sigma Customs: Corvus
The project is still active. Have done a few for the FB list so far and a couple for here are up next, had to restart the first one for here. Have done another switch revision which should be the final version, and has maximized ease of servicing the switch assembly while minimizing any risk of...- Thetasigma
- Post #75
- Forum: Homemade and Modified Flashlights Discussion
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Current situation at the SS?
Is the shoppe closed? I am enable to select a shipping method at checkout.- Thetasigma
- Post #9
- Forum: Candle Power Forums Vendor Display
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what was the first led flashlight you owned?
One of those 7 LED 3xAAA affairs that was slightly less shitty than the common ones now. Holder was still junk though. Mine was grey with hex sides on the head and tail, circa 2003. Tint was best described as screaming blurple.- Thetasigma
- Post #89
- Forum: LED Flashlights
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Sigma Customs: Corvus
Working on one for FB and one for CPF at the moment- Thetasigma
- Post #72
- Forum: Homemade and Modified Flashlights Discussion
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What will flashlights be like in 2030-2040
Barring a successor to the LED and new chemistries, largely the same as today with minor improvements to current LED tech and battery chemistries. The sad part is that we are already largely there as far as LED efficiency goes, theoretical limit for cold white LEDs is somewhere in the 300-400...- Thetasigma
- Post #3
- Forum: General Flashlight Discussion
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Sigma Customs: Corvus
Minor design update, revised the tailcap design a bit and will be implementing it going forward after testing it on the next host cut. This revision allows the switch assembly to be loaded fully from the tail instead of splitting the assembly process between the tail and battery compartment...- Thetasigma
- Post #68
- Forum: Homemade and Modified Flashlights Discussion
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Sigma Customs: Corvus
Stalled out for a while, other things have taken priority. Hope to get some done in the next few months.- Thetasigma
- Post #65
- Forum: Homemade and Modified Flashlights Discussion
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Sold/Expired WTS: Notta Designs Beam, Titanium
Bump, $485- Thetasigma
- Post #4
- Forum: Sold/Expired/Completed
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What will you look forward to when covid is over?
COVID mutates enough that it isn’t going anywhere without complete vaccination rates. Get you vaccine, or don’t, and behave with an acceptable risk tolerance for you and those you care about, and move on with life.- Thetasigma
- Post #34
- Forum: The Cafe
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Sold/Expired WTS: Notta Designs Beam, Titanium
Drop bump, $500- Thetasigma
- Post #2
- Forum: Sold/Expired/Completed
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