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Description: Electronic circuit design.
 

XTL choice for 137Hz w/ CD4046 
  If I use a CD 4060 to generate 137 Hz, given the divide down outputs available, what frequency crystal should I use? I am not aware of what crystals are commonly available, so my mind is buckling trying to find a starting point. Perhaps someone here is more familliar with this procedure and would be so kind as to offer advice.... more »
By Don Lerner  - 11:22am - 2 new of 2 messages    

Diode Laser 
  What does a diode laser module add to a diode laser? A voltage regulator or current limiter?
By Jon Slaughter  - 7:36am - 8 new of 8 messages    

OT: What's your weather like now? (not about AGW) 
  This is not intended to spark off another GW debate. It was evident that those of you in Europe and N.America have just had one of the coldest winters in recent years. I'm curious about the temperartures you're currently experiencing now that we're approaching the middle of March.
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By tradenow  - 2:19am - 1 new of 1 message    

passives manufacturer Kome. Any experience? 
  A supplier is offering us passives made by Kome. Standard stuff like 0805 resistors and X7R capacitors. Anyone any one know of or used Kome?
By Raveninghorde  - 2:17am - 1 new of 1 message    

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By Jon  - Mar 9 - 2 new of 2 messages    

Durofix RL435 
  Does anyone have a schematic on the Durofix RL435 emergency lite? I want to look into modifying it for use on 220v. I could just get stepdown transformers (and that ultimately may be the cheapest/easiest fix) but I'd love to be able to just plug these guys in directly. Looks like a switching supply to me.... more »
By tsmyles  - Mar 9 - 1 new of 1 message    

Help with Noise Injection into Circuit 
  I am working on an ignition coil driver circuit. I have a fixture with the load(spark plug) that is arcing in open air within feett of my board. I know this is brief description, but essentially IGBT final control with opto mcu driver. The layout was with EMI in mind, decouplers, 100ohm series limiters,... more »
By Johnny5  - Mar 9 - 4 new of 4 messages    

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