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The V-Fetron Comes To Life
The V-Fetron Comes To Life
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Old 27th April 2016, 07:22 AM   #11
aspringv is offline aspringv  Australia
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The V-Fetron Comes To Life
....and V-Fets ordered. Now to find out what sort of transformers were used...
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Old 27th May 2016, 01:09 PM   #12
aspringv is offline aspringv  Australia
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The V-Fetron Comes To Life
Default reg'd psu's

So I'm slowly jimmying up some pcb's here. Anyone got a great suggestion for the bulk power supplys? reg'd? and if so, how? Thoughts currently are a basic reg (ala cx1 vfet pass psu) but open to suggestion!
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Old 27th May 2016, 01:13 PM   #13
Michael Rothacher is offline Michael Rothacher  United States
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The V-Fetron Comes To Life
It's entirely down to taste, but for anyone who's looking for a head start on this project (sorry I'm out of commission) you can pretty much copy and paste the various supplies from the VFET Part 1 article by Nelson Pass. Scaled up for the 75 watter of course.
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Old 29th May 2016, 11:07 AM   #14
aspringv is offline aspringv  Australia
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Hi Mike,

Any chance you've a value for those resistors I see in the schematic?

Cheers in advance

PS - I guess your website is down due to the move. I hope it all goes well!
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Old 29th May 2016, 12:14 PM   #15
Michael Rothacher is offline Michael Rothacher  United States
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The V-Fetron Comes To Life
100R or so.

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Old 29th May 2016, 01:11 PM   #16
aspringv is offline aspringv  Australia
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The V-Fetron Comes To Life
Cheers!

I'm getting along with the build. Brackets are the current wait, but most everything else is collected/ready to go. I've not ordered the Jensen's yet though. I have to confess to trying to find cheaper/local solutions...
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Old 30th May 2016, 05:03 AM   #17
aspringv is offline aspringv  Australia
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The V-Fetron Comes To Life
With this being the likely front runner...

http://www.altronics.com.au/p/m0707-...g-transformer/
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Old 30th May 2016, 08:48 AM   #18
nicoch58 is offline nicoch58  Europe
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humm only 20Hz - 13kHz
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Old 30th May 2016, 08:59 AM   #19
aspringv is offline aspringv  Australia
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You should have seen the alternatives! It's enough to get me started...
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Old 31st May 2016, 11:58 AM   #20
aspringv is offline aspringv  Australia
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Actually - any insight on testing? I intend to hook the transfo up to a PC and analyse it coupling input to out put...
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