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  1. Sigurthr

    x-ray homemade

    Yeah, I still use REM, can't help it; it's what I was taught ages ago. I guess it shows my age. Re: fluoro dose incidents; even modern units can cause these types of accidents because many modern units have an automatic power adjustment mechanism which measures the xray flux exiting the target...
  2. Sigurthr

    --Updated-- Another X-Ray thread (Teardown completed)

    Re: Another X-Ray thread Nice that it includes the tube info on a sticker. Yeah the copper window and aluminium tube are a low energy cut filter. It only allows higher energy photons to exit, reducing blurring of images and the absorbed rate low density targets would experience.
  3. Sigurthr

    Tesla Coil Build Thread

    Excellent work Gao! Your coils are always so beautifully done. How are you mating the double bridge, btw? Are you using a transformer or just straight paralleling them?
  4. Sigurthr

    x-ray homemade

    S_L is on the correct side of the issue here. We do not say 1mW lasers are safe to stare directly into because there are too many factors in play, even though they're several times below the threshold for damage. You don't really know the output of the unit until it is tested - first and...
  5. Sigurthr

    For Sale: LaserBee A 2W LPM

    Lmfao. Yeah, sometimes you just don't need an lpm and you can get by for a long time without. Sometimes everything just works and there's no need to scrutinize the pretty photons. =P But when you need one, you NEED one. Btw, is LasersBee still in operation? I know they left LPF a while back...
  6. Sigurthr

    For Sale: LaserBee A 2W LPM

    "Money Talks while BS Walks..." but a gentleman gives the sincere customer 24hrs to put up the funds. I strive to conduct my business as would a gentleman amongst his peers; not with corporate policies hungering for efficient profit, even if I am thirsty for the funds at the time (I usually...
  7. Sigurthr

    For Sale: LaserBee A 2W LPM

    Confirmed. Payment received in full. Item is now SOLD! I'll have it out in the post by Tuesday afternoon. Sorry I don't have multiples to provide for all, thanks folks.
  8. Sigurthr

    For Sale: LaserBee A 2W LPM

    Currently SALE is PENDING PAYMENT RECEIPT. If the primary buyer fails to send payment within 24hours I may advance to the second buyer, and so on.
  9. Sigurthr

    For Sale: LaserBee A 2W LPM

    Sounds good =). As of right now it's still available!
  10. Sigurthr

    x-ray homemade

    Look forward to seeing your results. I recently finished a similar project, it's in the Geek's Corner section. Also, I'm selling a perfect x-ray tube on ebay right now too.
  11. Sigurthr

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please Just listed this: Toshiba D 138B Coolidge Dental x Ray Tube | eBay Coolidge X-Ray Tube I figure there's probably no takers here for me to make a for sale thread about, but can't hurt to give a heads up.
  12. Sigurthr

    For Sale: LaserBee A 2W LPM

    I'm finally getting around to selling this, haha. Sorry for taking so long, those of you who had PM'd me asking. LaserBee A 2W (thermal: peltier) LPM. Well cared for, never abused. Excellent condition sensor surface, still works like new. PayPal only. $85 + $15 shipping via USPS. ($100 shipped!)
  13. Sigurthr

    Tesla Coil Build Thread

    I remember looking over the schematics for the EVR modulators. Their higher end one which has independent duty/frequency and a single shot mode looked like it was actually really well and properly done. I remember thinking their basic one was crap though. Take that with a grain of salt, it...
  14. Sigurthr

    Tesla Coil Build Thread

    Fantastic, Jefferson! I'm glad you got home safe and sound too. Remember to try out that Xenon tube finally, haha. As for modulation, there's a whole bunch of stuff you can do depending on how involved you want it to be. From simple 555s to arduino to hifi am/fm audio modulation. You, so have...
  15. Sigurthr

    Name Change

    I'll probably still call you Twirly, you know. =P Good on ya for changing it to something you like though. Never be ashamed of your interests and choices. Don't let the trolls get to ya, they're the ones who can't bear their own reflections.
  16. Sigurthr

    Tesla Coil Build Thread

    IIRC phase lead is easy to add though. Check 4hv for specifics. I think it's just an inductor and maybe another supporting passive.
  17. Sigurthr

    Tesla Coil Build Thread

    Very nice! What controller are you using?
  18. Sigurthr

    Tesla Coil Build Thread

    Glad to see you've got it all sorted out!
  19. Sigurthr

    Tesla Coil Build Thread

    Did you tie the rectified negative line to ground?
  20. Sigurthr

    Spartan 589- *problem solved*

    Re: Spartan 589! ...Disappointed. :( Regarding the thermal performance, this is typical for the type of laser (SFG DPSS). See if you can get someone experienced with the unit to repair the lens assy to remove the splash.


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