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Forums
4hv.org :: Forums :: High Voltage
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Modern AC Flyback Transformers

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hen918
Wed Sept 24 2014, 05:52PM
hen918 Registered Member #11591 Joined: Wed Mar 20 2013, 08:20PM
Location: UK
Posts: 556
I have a plus next to my name, two please!
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Ash Small
Wed Sept 24 2014, 06:12PM
Ash Small Registered Member #3414 Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
@ Alex and Hen, are you interested in combining postage to UK?

I don't mind who they are sent to, and it could save quite a bit. You are both regular posters here, so I don't have a problem trusting either of you wink
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hen918
Wed Sept 24 2014, 07:09PM
hen918 Registered Member #11591 Joined: Wed Mar 20 2013, 08:20PM
Location: UK
Posts: 556
Ash, I wouldn't mind. Any ideas about how to do it? I have enough to buy everyone's in the UK and then I could ship them out to you? Or we could all pay Fiddy for them and then one of us could receive and redistribute them?
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Ash Small
Wed Sept 24 2014, 10:19PM
Ash Small Registered Member #3414 Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
hen918 wrote ...

Ash, I wouldn't mind. Any ideas about how to do it? I have enough to buy everyone's in the UK and then I could ship them out to you? Or we could all pay Fiddy for them and then one of us could receive and redistribute them?

I suggest we get a price from Fiddy, and then go from there. I shouldn't have a problem raising my share, although I do occasionally have cash flow 'priorities', but I can't see that being an issue here.

Transferring funds via PayPal, for example, is pretty simple these days.

Let's wait for Alex to comment, though, and see what he says.
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Fiddy
Thu Sept 25 2014, 02:11AM
Fiddy Registered Member #8817 Joined: Mon Dec 17 2012, 05:16AM
Location: Australia
Posts: 110
Well ill have to order more at this stage with these added quantities.

Ok guys ive ordered 25 transformers, stay tuned for production updates!
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Patrick
Fri Sept 26 2014, 06:27PM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
If someone has a high voltage oscillocope probe, it would be fun to compare a DC flyback to this AC ones' output.
Do you know if it has the typical gap?
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Fiddy
Sat Sept 27 2014, 01:00AM
Fiddy Registered Member #8817 Joined: Mon Dec 17 2012, 05:16AM
Location: Australia
Posts: 110
The gap in the iron core? There is no gap.
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Ash Small
Sat Sept 27 2014, 10:39AM
Ash Small Registered Member #3414 Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
Fiddy wrote ...

The gap in the iron core? There is no gap.

It's possible to add a gap, by dismantling it and adding some plastic film or paper between the cores. It only bolts together, it's not epoxied or anything, is it?
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Fiddy
Sat Sept 27 2014, 12:59PM
Fiddy Registered Member #8817 Joined: Mon Dec 17 2012, 05:16AM
Location: Australia
Posts: 110
There are actually plastic films in between the core joins! They are quiet thin.

Core1
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Patrick
Sat Sept 27 2014, 03:24PM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
yeah im not sure if having or getting rid of the gap helps your guys' ZVS type circuits. i mainly use traditional flyback circuits, so for me its essential.

As ashSmall said, we often dont get a choice as there epoxied.
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