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Re: Ambitious burner project idea & heatsink quest Sorry to burst your bubble... You will never ever get enough current from button cells. Renata CR1025 datasheet claims maximum discharge current of 0,4 mA and a capacity of 30 mAh http://www.renata.com/pdf/3vlithium/DBCR1025.03.pdf And it...

Same here, until I started using 1W Luxeons I never saw what whas going on around here. Will use a 3mm indication led on my laser box though, so as not to take away to much power from the batteries.

actually ESD safe soldering gear is meant to absorb any static electricity from your own body, just like an antistatic wriststrap, so you only need to use one of both and a strap as my preference as the soldering iron only releases te esd from your body when you touch it and a strap is there all...

Won't the TEC give another voltage if the cold side has another temperature? How will you calibrate it?

I ordered some SLD1236VL diodes from ebay, which the seller claimed to be able to reach 250mW pulse. They arrived today and guess what... They're just another batch of SLD1236VL-54. I already contacted the seller telling him he better not send me -54 diodes which are only capable of running at...

Sorry, my bad, It should be August, as Benm stated. Thanks for pointing it out. I've edited my first post. Steve

Thanks Razako, you summed it up nicely. Need some goggles anyways... Steve

First of all, I would like to say that we really need a real datasheet on SLD1236VL diodes, but it cant be found anywhere. The file posted as a datasheet everywhere, isn't a datasheet, it's a press release and lacks a lot of vital information, which should be present in a real one...

Say I shine a 150mw laser up into the sky and watch it's beam, how can this cause eye damage? Sorry if it's a dumb question, but really would like to know the idea behind that. Steve

I just hope these are really VL (=good), they sell for less than his JL diodes... all feedback he got is possitive, so... maybe he only sells to clueless people Steve

I only said that because that guy on Ebay seems to sell both varieties that SenKat sold of his site. I understand that it's impossible to reach 250mW with a canned diode for any length of time, the ones offered state 240mW pulsed actually and they are SLD1236VL according to the offer. Which are...

Well, ordered 3 diodes here anyways. The offer clearly states they are SLD1236VL diodes, so we'll see what arrives in a few weeks from now. Steve

Nobody got a clue on this one? This seller both sells SLD1236VL and SLD1239JL diodes The SLD1236VL diodes are cheaper and those are the ones that people where so happy with, no? I wouldn't be surprised that senkat got his diodes from this guy, as he sells them in bulk quantities to, and both...

Hi there, Was wonderig, since the Senkat diodes have a bad batch running. Has anyone bought diodes from this source: cgi.ebay.com/Lot-3-250mW-650nm-Red-High-Power-burning-Laser-Diode_W0QQitemZ280199696321QQihZ018QQcategoryZ53141QQcmdZViewItemQQ_trksidZp1742.m153.l1262 and are these diodes...

Thanks all of you for the kind words, when reading the forum I clearly saw that it's very friendly and welcoming. Chad, that's exactly what I'm looking for, will read up on the quality issue to see what's going on... Thanks, Steve

Hi to all members, I've just signed up after two days of reading old posts. I'm from Belgium and 29 years old (from what I've seen, really old compared to many on the forum). Intrested in electronics, leds and lasers and a lot of other fun things... I currently own a neat 5mW red laser and a...