Prototype OPT

[TheMooN]

Recently finished winding a Prototype OPT design ,7K A-A , 43% UL tap ~ Came in at 10 Kilo ! , Currently strapped onto a faithful old 5-20 chassis and on test .

[steve]

Nice Job - where did you get your cores and bobbins from?

I know nothing about transformers, but i want that one!!

[Dave the bass]

I think it needs to be bigger.



DTB

[kuroguy]

Originally Posted by Dave the bass

I think it needs to be bigger.



DTB

I think you either need to drink more, or less. I'm not sure which.

[Dave the bass]

Originally Posted by kuroguy

I think you either need to drink more, or less. I'm not sure which.

I'll try both and let you know.

Dedicated to the cause y'know.

DTB

[Grog]

thats one serious opt !
how about a diy article on opt's they are not difficult to wind by hand and a kit would be great.
maplin used to do a mains transformer kit many years ago, with a pre wound primary.
a WD output transformer kit / parts for sale with a few example transformers would be fantastic!

[pre65]

Looks greeeeeeeeeeaaaaaaaaat !

What you really need is another pair for me to test on my 832a amp.

So,what's the initial impressions ?

[kuroguy]

Originally Posted by pre65

What you really need is another pair for me to test on my 832a amp.

Actually, a much better idea would be for me to test them on my 832 amp.

[ian_r]

You can still get a DIY mains xformer kit from Mike: http://livinginthepast-audioweb.co.uk/xformer.html

I think hand winding an OPT would not be so easy