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I've heard that tv technicians who get zapped are more badly injured due to their hands being flung into the sharp edges inside the enclosure

You can't drive a forward transformer like a MOT with a ZVS. Can you? Necro'ed this thread as I want to build a HV supply to demonstrate franklin bell experiment, but a MOT at 2kV does not cut it... Anyone managed to get >15kV out of MOTs? I would try multipliers, but the beefy current means...

Opened it > Thinking of placing a PNP between the diode and the driver at the top compartment, with some makeshift 3.5mm trs jack to connect the base pin to the mcu when needed. Is there any foresee-able problems with doing so?

nice... You could take an aerial shot of your laser beams :D

I'm thinking of connecting my M-140 in C6 host to a simple avr circuit I built to convert ASCII into morse code. I'm unable to think of a way to modify the clicky switch such that I can use the laser standalone and with the base of the transistor linked to the mcu for transmitting. I'm...

As someone who grew up with both mandarin and english, and went on to learn japanese. I feel that japanese is easy to read but harder to speak due to excessive formalities. Mandarin is hard to read and write, even for a born and raised chinese; it is easier as a spoken language, a very basic...

Has anyone seen this? It almost like it was meant to encourage kids to go online and buy one. Same thing as sensationalised media reports of murders that encourage others to commit murder...

Thanks for all the kind words :) Finally caught the beam on my red laser setup last night, had to borrow a "better" (less megapixels, better ISO) point and shoot camera from a buddy. Night sky beamshot about 1.5 minutes into the video->

Love the super-compact driver!

After an agonising 2 month wait for all the components to pass through the festive mail service lag. Here are the two lasers: LPC-826 @ 400mA (Ebay seller Newgazer) Using a modified version of the constant current driver found at Rog8811 DC jack input and 3.5mm TRS jack as a safety plug...

AH! Thanks for spotting it, I labelled it wrongly because I misread the datasheet and took the adj as middle pin. :yabbem: :bowdown:

Firstly, this is roughly what I'm intending to build. Ugly resistor "farms" to make up for my lack of components. My main concern is the discrepancy in voltage between the 2X18650cell battery (7.4V) and the WallWart (9V). Should this be a cause for concern?:confused: Besides the extra power...

Here's an instructable documenting my attempts. It ended up sounding rather sub-standard. :cryyy: I recommend reading these (For custom IEMs): DIY In Ear Monitors DIY IEMs (w/ hollow shells) I'm currently using a pair of Shure 425s with custom eartips made in this fashion. Albeit much neater...

Fluent: English & Chinese Half-assed: Japanese Learning Latin is on my to-do list, because reading Newton's Philosophiae Naturalis Principia Mathematica in Latin is on my bucket list :D

Indeed, my local post office called me to ask whether or not I could go down personally to collect my package. "NO."

Speaking of crazy, my neighbour (apartment housing) who had a crush on my elder sister ,set a camera facing our doorstep. When questioned, he said it was for his own security. Thing is, our apartment is at the end of the hallway, unless he thought we were criminals. 3 years later, the camera is...

Yep yep, couldn't have phrased it better :D But for a laser diode, 1.5F is too little, but I guess running it for too long is bad for the diode.

That is really cool! If one of those was pointed at me, I'd run for the hills :D

A one minute charge yields around 1.5 minutes of good visible laser output, then it continues to spit out progressively dimmer red LED light for another 3-5 minutes. The exact same build with a white LED has decent output for 20~30 minutes on a one minute charge, not surprising, but the...

I'm using nothing... Didn't bother, besides, I wouldn't know where to start with making a driver for a capacitor, I mean, the voltage is not constant as it discharges...