Joule Ringer!

[e2matrix]

Conrad,  I think he said the twisted wire was a trigger wire.  Not sure if that helps but I thought both of the twisted wires were hooked together (but I could easily be wrong and haven't looked again at the vid). 
   Like you I'm also hoping he chimes in here about the transistor as it would be nice to know a replacement for the one in the Fuji as that one bit the dust early and while I found others worked most did not work as well. 

[lasersaber]

@conradelektro

That drawing looks right on to me.  You did a nice job drawing that out.  As you noticed there is a free end on the twisted wire buried in the coil.

[lanenal]

@lasersaber: thank you for the nice video! It is nice because everybody is saying so...But unfortunately I can't view it because I am in China... youtube is blocked and it is probably for good. But with the postings and discussions here I hope I can get hold of it -- I'm like a blind man probing around here...sorry if I am asking stupid questions.

@conrad: Thanks for the drawing, I still have a question: the word "counter wound" is not quite informative unless you also know the coil is wound from which end to which end. For example, the coil on pin 5 and 6, do you wind from 5 to 6 or the other way around? Or is there a convention that you always start from a lower numbered pin and end with a higher numbered pin? Thanks!

lanenal

Because I want to wind such a transformer, I made a little drawing. It will serve as a note when winding the transformer.

Please have a look at it, is it right? The free end of the twisted length is embedded in the coil (not connected to any pin)?

What transistor do you use? What is the Voltage of the starting charge of the electrolytic capacitor?

Greetings, Conrad

[Taylor1992]

@lanenal I could try to send you the video file through an email message if you would like. What format would you like the file to be in?

[lanenal]

@lanenal I could try to send you the video file through an email message if you would like. What format would you like the file to be in?

@Taylor: thank you! I think any common video format would be fine, there is a open source video player called vlc (www.videolan.org/vlc/), very versatile. It plays flash, mpg4, wmv, etc. I'll PM you my email address. You saved my day! Thank you very much!

lanenal