- Home LED Flickers - 4 Updates
- Source for quality tiny torx screwdriver bits? - 3 Updates
| frankcovending@gmail.com: Dec 16 12:46PM -0800 > wonder what is causing the flicker? > My guess is a cheap electrolytic in the rectifier, but I have never > really seen a schematic for how they are wired. This is my opinion. They are made very cheaply they aren't made with much shielding so anything can cause them to flicker. Now be careful because cans have protection from overheating and it's possible the LED module is not compatible with the model of can fixture you have so that's another possibility. I would try another unit see how things go. |
| tabbypurr@gmail.com: Dec 16 01:25PM -0800 > > My guess is a cheap electrolytic in the rectifier, but I have never > > really seen a schematic for how they are wired. > This is my opinion. They are made very cheaply they aren't made with much shielding so anything can cause them to flicker. that simply isn't so. The nature of the circuits makes them robust against RFI. NT |
| Tim R <timothy42b@aol.com>: Dec 17 08:11AM -0800 > a) The LED emitters themselves: These are pretty generic beasts, and while not-quite-one-size-fits-all, the same emitter may provide light from between 3000K to 5000K. They are also pretty bullet-proof. > b) The "Driver" - which is a device that takes current from some source and makes it into what the emitters want for a particular type (Temperature and CRI) of output. > Massive RF output - 5% - so massive as to even step on cell phones and blue-tooth frequencies on rare occasions, but mostly lower bands. Hmm. Our Christmas tree has a couple hundred LED lights on it. Am I broadcasting RF to the neighborhood? |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Dec 17 08:19AM -0800 On Monday, December 17, 2018 at 11:11:28 AM UTC-5, Tim R wrote: > > b) The "Driver" - which is a device that takes current from some source and makes it into what the emitters want for a particular type (Temperature and CRI) of output. > > Massive RF output - 5% - so massive as to even step on cell phones and blue-tooth frequencies on rare occasions, but mostly lower bands. > Hmm. Our Christmas tree has a couple hundred LED lights on it. Am I broadcasting RF to the neighborhood? Depends on the driver. You would know if you were. Peter Wieck Melrose Park, PA |
| mike <ham789@netzero.net>: Dec 17 12:19AM -0800 I'd like to get a set of tiny torx screwdriver bits...T9 and smaller for disassembling tiny electronic gizmos. I'm looking for a value-priced set. I already have 10 lifetimes supply of larger bits, so the large sets aren't attractive. The flutes on tiny torx bits aren't very big. My experience with the bright silver colored bits get rounded off almost immediately. The darker colored bits seem to last longer. The internet is full of sets with almost zero actual data upon which to base a decision. Google suggests that terms like S2 and CR-V don't mean much. Seems that the tempering has more to do with durability than the material. So, any recommendations for a small set of tiny torx bits that actually hold up under use? |
| stratus46@yahoo.com: Dec 17 02:06AM -0800 On Monday, December 17, 2018 at 12:19:38 AM UTC-8, mike wrote: > material. > So, any recommendations for a small set of tiny > torx bits that actually hold up under use? https://www.harborfreight.com/32-piece-screwdriver-set-with-tweezers-97517.html I have one of these at work and gave my daughter a set to take to school. At $7 the quality is decent. G² |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Dec 17 06:14AM -0800 Mini-Rant Warning: https://www.amazon.com/PB-Swiss-PB-410-H6-45-L-wrench-T6-T45/dp/B01AW8RRZU/ref=sr_1_1_sspa?ie=UTF8&qid=1545055113&sr=8-1-spons&keywords=pb+swiss+torx&psc=1 Is one option. Made in Switzerland https://www.wihatools.com/torx-tools/bit-sets?gclid=Cj0KCQiAr93gBRDSARIsADvHiOqYNKwt3F6MML8K-wed4N6EbnDZfXJEc__JuNbASmI4zYx4Hu9SvrUaArr5EALw_wcB Made in USA https://www.amazon.com/Chapman-MFG-1068-Screws-Screwdriver/dp/B01LWV4ZBP Also Made in USA Put another way - if we want to keep having access to quality tools, we need to purchase quality tools so that the manufacturers of quality tools remain in business. Sure, the Swiss example is a bit extreme, but were I working on critical equipment where lives were at stake, that is likely the direction I would take. For everyday or occasional use, I would go with the other options (of many) of US-origin. Why? I want my neighbor to keep his/her job. If I run to China for this sort of stuff, my neighbor is without a job. Pretty much covers it. Sadly and all to often, there are no other options but Pacific-Rim sourced items. But, far worse than that, is when there are such options, usually quite reasonably priced, and they are ignored. For the record, very nearly any tool available from China via Harbor Freight is available from the USA via any number of sources. Your neighbor will thank you. Peter Wieck Melrose Park, PA |
| You received this digest because you're subscribed to updates for this group. You can change your settings on the group membership page. To unsubscribe from this group and stop receiving emails from it send an email to sci.electronics.repair+unsubscribe@googlegroups.com. |
No Response to "Digest for sci.electronics.repair@googlegroups.com - 7 updates in 2 topics"
Post a Comment