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  1. G

    Some info about this IR diode?

    It would be better if you used a transformer closer to the 2.2v voltage that is required plus the drop-down voltage of the lm.I think you should go to lm138 it stands up to 5 amps and its drop-down voltage is about 1.5V .So a transformer of about 5 volts would save you a lot of temperature.The...
  2. G

    Is anyone interested in building a portable metalcutter??

    I've just found this on ebay and thought you check... Opto Power 20w Laser Diode 808nm NdYV04 Pump DPSS Burns Opto Power 20w Laser Diode 808nm NdYV04 Pump DPSS Burns on eBay (end time 09-Mar-10 22:14:23 GMT) Next project maybe 20 watts??lol I've checked again and they have 32 and 40 watts also....


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