Hey Kevin! Boy, is my face red on the current control bugabo

[Rich Grise]

When the concept of 'small signal' finally osmosed its way through my
headbone, it was like, "Whoa, dewd! Duh!"

When you're working with a couple of volts of audio, it's convenient to
treat it as current-controlled because of the horrendous, and
uncontrolled, voltage gain. You can make a darlington peg a meter with a
battery and your fingers.

But when you're amplifying a millivolt *Ding!* Ah! I get it! ;-)

Cheers!
Rich

 

[Active8]

On Wed, 24 Nov 2004 22:53:10 GMT, Rich Grise wrote:

When the concept of 'small signal' finally osmosed its way through my
headbone, it was like, "Whoa, dewd! Duh!"

When you're working with a couple of volts of audio, it's convenient to
treat it as current-controlled because of the horrendous, and
uncontrolled, voltage gain. You can make a darlington peg a meter with a
battery and your fingers.

Hfe (not hfe) is useful enough for designing a switch - to get your
current limit resistor.

But when you're amplifying a millivolt *Ding!* Ah! I get it! ;-)

Did you see the bit on the MacLaurin series expansion of the diode

eq?

--
Best Regards,
Mike

 

[Winfield Hill]

Active8 wrote...

Did you see the bit on the MacLaurin series expansion of the diode eq?

Where was that?


--
Thanks,
- Win

 

[Active8]

On 25 Nov 2004 05:55:46 -0800, Winfield Hill wrote:

Active8 wrote...

Did you see the bit on the MacLaurin series expansion of the diode eq?

Where was that?

On Kevin's site. The paper on distortion.
--
Best Regards,
Mike