- Using a non-dimming LED bulb on a dimmer - 1 Update
- Ham Radio license - 1 Update
- HP LASER Printer CM1312nfi MFP Toner Cartridges - 1 Update
- 22" monitor GNR TS2200WA - info? - 1 Update
Rob <nomail@example.com>: Apr 07 04:39PM > in the room. > And just for the heck of knowing, what does happen if someone dims the > non-dimming LED bulbs? It depends on the bulb, but usually these non-dimming bulbs will have a "capacitive dropper" circuit: the input of the bulb has a series capacitor, followed by a bridge rectifier, and the LEDs in the bulb connected in series on the DC output of the rectifier. The result is that the LED current is determined by the derivative of the current. This works fine on a sinewave, but the output of a dimmer has steep edges so the current peaks will be much higher at that point and the LEDs will burn. |
jurb6006@gmail.com: Apr 07 09:32AM -0700 >"Amateur radio licensing has NOTHING to do with you opinions on tax law. " And your acoustically coupled MODEM is ? Just what have YOU contributed that is on topic ? That is even less relevant, at least I can say that if the OP is concerned with privacy against an ever invasive government it is at least related. Your sole on topic post was "Just do it and get over yourself". That is constructive ? That is useful ? Tell you what, YOU get over YOURSELF Snit. There are those who better pray that I never catch cancer and am going to die soon because I might just decide to do the world a few favors. |
Ralph Mowery <rmowery28146@earthlink.net>: Apr 07 10:11AM -0400 In article <b1e5f33a-4250-4024-85b2-4d36d8b9c60a@googlegroups.com>, tabbypurr@gmail.com says... > Do yourself a favour and bin the inkjets. Once ink dries in the head they're usually a waste of time, and they'll only clog again. If you must play, try alcohol. > Opening the cart: is there really no youtube vid showing a refill/recon on your cart? Oe of my better moves was to get rid of an ink printer and go to the laser type with the toner. I do not really need any color printing for the most part. The laser really puts out the work and Ican set it to automatically print both sides or even to print two pages on one side of a paper if the print is large enough to read. The printer was on sale so the cost was not very much. |
Mike Coon <gravity@mjcoon.plus.com>: Apr 07 02:04PM +0100 I have a 22" monitor GNR TS2200WA on a repair or discard basis. It consumes 2W when powered; presumably on standby. But does not move off standby to full operation. I can also not get the back fully off, just some daylight along the bottom edge. Has anyone any guidance on either mechanical or electronic aspects? Please? Mike. |
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