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My problem: Hotplugging the soundcard pushes all channels to max output The goal: To run a safe show I have tried so far: a) Relay linked to +12v and the usb 5v line ---> sucks power from USB making card useless b) Solenoid to +5v usb ---> too delayed c) Using usb 5v to power the correction amp...

A friend of mine says although this style correction amp uses -12v, it does not incorporate -12v (or is it -5v?) into the output, meaning your scanners will only get a positive voltage, limiting your scan angle. Is he correct? I can post the schematic but I assume someone will know this off...

O-like seem to no longer have their 400mw module listed and they do not seem to want to reply to my various emails about it. Anyone know if they still have these? If not where else I could get a module of about this power for an affordable price? Thanks in advance.

As title suggests, it is time I get a green for my scanner. I have considered getting a 150mw module from Lazerer for $60 and have already made the analog driver myself but would rather check here first for anyone who can give me a good deal. You can let me know about your assembled labbies...

A guy I know owns a laser therapy company.. Asked him if his suppliers sold any strong 660/635 diodes. Here's specs on 1W 660nm. Weird format so I just made a snapshot... What do you guys think? I am no expert but divergence looks better than mitsubishi D's.

Hello from South Africa! Inspired by so many other CPU cooler builds, I decided my first diy build would be a lab laser. It's not professional but is IS cheap, durable and impossible to overheat. What more could I ask for? :p I am a total newbie. Here's how I did it,, NOOB STYLE...

Hi all. Has anyone ever thought about drilling a hole though a host to install an additional switch to toggle between power modes? Wanting to do something that was (hopefully) original I went to the hardware store and bought a very ugly switch to try this out. :) Very excited to get going...

Hi all, Greetings from South Africa. I recently purchased a 600mw green focusable torch style for around 80$ from a local classifieds. It was shipped from his city to mine, which was the first vital mistake I made because of course I could not check it out. Although I am a total laser noob I...