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Re: That's what I was thinking....

"Generally, I encourage differential (or long tail) pairs of input devices. "

I must agree that those beloved long tailed pairs are EXCELLENT!
In my view, they are one of the most important building blocks in electronics.

Curl, you mentioned something about video-IC's in Halcro.
I have the schematics from the patent-paper right in front of me. It appears to be a fully discrete design comprising bipolar devices only except for the output stage that is MOSFET.

Have you read the patent-paper? If you don't have it, I will send you a copy by e-mail if you wish. Doug Self is mentioned several times in the paper.

\Morello



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