[Ronja] Progress report

Karel Kulhavy twibright at hispeed.ch
Tue Feb 3 22:01:40 GMT 2009


---- Silvije <discover at fly.srk.fer.hr> schrieb:
> 
> That sounds great!
> Very digital :)
> 
> if I just may point out that "analog" solution could be as simple as
> http://repairfaq.cis.upenn.edu/sam/teeny.gif
> 
> so if you have 12V supply, I believe you could easily use 2n3904 and
> would not need more than lets say 4,6 turns in primary and about 24-30 
> turns in secondary of one little transformer... check the part count :)
> just one transistor :)
> 
> btw. for making such little transformers I use to "modify" inductors 
> "transformer like" from PCBs of burned ccflamps, there you can also 
> find some realy fine high voltage capacitors (400V) and other stuff, if it 
> is problem for someone to get them :)

Do you know a source of new (not removed from broken electronics) standardized transformer cores that are easily available everywhere?

Karel





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