Here is where I got the OPA2604. These are a standard DIP8 and drop right in:
http://www.newark.com/texas-instruments/opa2604ap/ic-op-amp-dual-fet-ip-2604-dip8/dp/97K6814
Here is where I got the AD797B. These require the adapter.
http://cimarrontechnology.com/so8to8-pindipadapterpn970601-3.aspx
Here is the article that Doug did for Dagogo. It also has all of the info you will need:
http://dagogo.com/View-Article.asp?hArticle=864
Again, a BIG THANKS to Douglas Schroeder for taking all of this on!
The Mullard is a sweet, warm, vocal driven tube. Very open and throws a huge, wide and deep soundstage. My favorite brand of tube and I've tried them all.
http://www.newark.com/texas-instruments/opa2604ap/ic-op-amp-dual-fet-ip-2604-dip8/dp/97K6814
Here is where I got the AD797B. These require the adapter.
http://cimarrontechnology.com/so8to8-pindipadapterpn970601-3.aspx
Here is the article that Doug did for Dagogo. It also has all of the info you will need:
http://dagogo.com/View-Article.asp?hArticle=864
Again, a BIG THANKS to Douglas Schroeder for taking all of this on!
The Mullard is a sweet, warm, vocal driven tube. Very open and throws a huge, wide and deep soundstage. My favorite brand of tube and I've tried them all.