GPP - Great Phono Preamp

[syn08]

Power supply schematic (board level)

[syn08]

Signal path schematic, one channel only

[syn08]

Originally posted by analog_sa

When i feel an uncontrollable urge to share with this forum i'll make sure i start a new thread and not just get a free ride under "Great Phono Preamp"

Booo C'mon, don't be shy, share your experience, i'm ready and willing to learn something new from a Great GEB member

[syn08]

Back panel detail; left input, right output, left switch MM/MC, right switch Mute.

[jacco vermeulen]

Originally posted by syn08
Case Closed

:bs: , you still need a decent preamplifier.
Enjoy the VPI works, Mr Popa.

[scott wurcer]

Originally posted by syn08
Moving Coil, gain @1KHz is 64dB

AD797 + AD797 + LME49710
OPA637 in the power supply

Is that an HP DSA? I wish more people would properly normalize their noise data.

[lineup]

HP
DSA
.. where is my english synonym wordbook, if it contains such insider fancy 'words'

do you write to be understood, by everyone, Scott
or only some few?

if it's so lonely at the top .. why don't come down and get some friends
use a language that is more ordinary, you do not have to feel ashamed to use words
that are plain and understandable
Nelson Pass does it - why don't you do it

Randy Newman - It's lonely at the Top
http://www.youtube.com/watch?v=-15gTE4CEiw

I've been around the world
Had my pick of any girl
You'd think I'd be happy
But I'm not
Ev'rybody knows my name
But it's just a crazy game
Oh, it's lonely at the top

Listen to the band, they're playing just for me
Listen to the people paying just for me
All the applause-all the parades
And all the money I have made
Oh, it's lonely at the top

Listen all you fools out there
Go on and love me-I don't care
Oh, it's lonely at the top
Oh, it's lonely at the top

[syn08]

Originally posted by scott wurcer


Is that an HP DSA? I wish more people would properly normalize their noise data.

VSA, HP89410A

I'll be back soon with some 1Hz-10Hz noise data. Takes forever to measure and average...

[scott wurcer]

Originally posted by lineup
HP
DSA
.. where is my english synonym wordbook, if it contains such insider fancy 'words'


[/B]

Dynamic Signal Analyser, I assume most people know HP. I thought the real content was the normalization of the FFT. When you change the number of points in the FFT the answer does not move around. Most portable recorders or mic preamps on the market come with a noise plot that does not enable you to compare apples to apples.

[scott wurcer]

Originally posted by syn08


VSA, HP89410A

I'll be back soon with some 1Hz-10Hz noise data. Takes forever to measure and average...

Try .00001Hz, I have. Had to prove that some wierd noise eventually went back to 1/f, it did and physics was safe again.