The Boulder 993 Gain Stage

[Nelson Pass]

Jensen's circuit was a very nice piece, but is a bit dated
after 20+ years.

You will be interested to know that Deane received a US
patent on the inductors on the diff pair as a means of
lowering the open loop gain at higher frequencies and
improving loop stability.

 

[mlloyd1]

Ahhhh....
Nelson, thanks for explaining why I haven't seen those inductors in any other designs! I never considered that the idea was patented.

And that hypno thingie is making me sleepy ...

...
You will be interested to know that Deane received a US
patent on the inductors on the diff pair as a means of
lowering the open loop gain at higher frequencies and
improving loop stability.

 

[purer]

An externally hosted image should be here but it was not working when we last tested it.

 

[ANADIGIT]

You you you !!!

Hi, Purer

When will you send Goldmund Amplifier Cloned to me ?
I wait for you 2 months ago !

Please contact me as soon as posible !

Thanks
Anadigit

 

[wahab]

You will be interested to know that Deane received a US
patent on the inductors on the diff pair as a means of
lowering the open loop gain at higher frequencies and
improving loop stability.

Great..
Somewhat like the infamous Rambus, it s easier to patent
something that already exists.
If my memory is good, inductors implemented in a differential
emitters date back from the mid 60s.

 

[ANADIGIT]

received monet already

Sorry Mr.Purer. if this post disturb you.
I received my money back alreay.

Thanks
Anadigit