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Old 10-09-2019, 07:00 PM
RAMSET RAMSET is offline
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Join Date: Mar 2009
Location: NYC and Conn USA
Posts: 1,420
Topic: Graham Gunderson open sourcing magnetic implosion transformer

Thanks to a new friend Jim D for sharing today .


more info to follow
much gratitude to Graham

Chet K
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Old 10-10-2019, 01:07 AM
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BroMikey BroMikey is offline
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Join Date: Jan 2013
Posts: 6,159
Thank you Graham

The most significant thing you said was that you had criticized or were
down on others for ten years for not sharing their device discovery's and
did not want to fall into the category of a hypocrite by keeping yours
a secret. The details were awesome including the delay but your
transformer construction is quite important also. The explanation of
the litz winding and insulation in 3 rows or stages of the voltage handling.

Then you answered questions about building these you said you had to
work all day to feed a family. The real person delivery yet it might be
possible to find a way get enough money to build units with the help
of others using you are the captain of the ship.

Good video Chet

Last edited by BroMikey; 10-10-2019 at 01:37 AM.
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Old 10-10-2019, 02:29 AM
RAMSET RAMSET is offline
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Join Date: Mar 2009
Location: NYC and Conn USA
Posts: 1,420
A true open source ambassador !!

I once heard it said ,"If you want to change the world...Be that change "

live by example !!

Quite certain this is not easy for Graham ,its his baby , he has an opportunity for a legacy, and to set an example .

His Passion is self evident ,his resolve steadfast...his humility inspiring. There is something very special going on here !!

hoping for more info for the open source replicators who share the same vision with hope for the same future ,

Chet K

Last edited by RAMSET; 10-10-2019 at 02:37 AM.
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Old 10-10-2019, 08:23 PM
bistander bistander is offline
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Join Date: Apr 2015
Posts: 1,698


Thanks. Interesting, but I haven't studied it enough to get aboard or reject. But one thing gets me wondering. If I understand him correctly, the primary is excited at about 39kHz and drives the core into saturation each cycle. Now I don't know the size or material, but from the apparent shape, it is unlikely something like metglas, more like silicon steel laminations. Seems like the core loss would be way greater than the 10 watts he's talking about.

Just an observation. Like to see other opinions or explanations of it.


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Old 10-11-2019, 01:14 AM
RAMSET RAMSET is offline
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Join Date: Mar 2009
Location: NYC and Conn USA
Posts: 1,420
From an old friend and fellow experimenter of Graham's

see Partzman's comment here .[like most folks who know him, he holds Graham in very high regard.

post #8

Chet K

Last edited by RAMSET; 10-11-2019 at 01:30 AM.
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