His Master's Noise: A Thoroughly Modern Tube Phono Preamp - Page 8

21st April 2010, 12:00 PM
SY On Hiatus Join Date: Oct 2002 Location: Chicagoland	His Master's Noise: A Thoroughly Modern Tube Phono Preamp After more than 25 years of faithful service, it seemed that it might be time to redo my phono system. After all, I like to think that I've picked up a few tricks in the intervening years... The old system consisted of a VPI HW17-II, a Linn Ittok LVII tonearm, and a Troika cartridge. The Troika was... Click here to read the entire article Last edited by Variac; 2nd April 2011 at 12:17 AM.

19th November 2010

laiphroaig

diyAudio Member

Count me in for a set

7th December 2010

d to the g

wildburro audio

diyAudio Member

Any news on this? I have a week furlough from work at the end of December and was thinking of getting one of these up and running.

7th December 2010

jackinnj

diyAudio Member

PM Me

Why, silly hare, are you fleeing from the fierce jaws of the lion now grown tame?

7th December 2010

jackinnj

diyAudio Member

The boards are almost designed -- they differ from the one I used for my prototype in having 2 regulators -- looks like 10.000" by 8.400" -- I will have about 50 of them made available at cost for SY's "minion". The power supply boards can (and should) be separated from the RIAA board.

I also have a bunch of the WIMA caps that I'll package separately.

Why, silly hare, are you fleeing from the fierce jaws of the lion now grown tame?

8th December 2010

jackinnj

diyAudio Member

The boards are going to be $15 (more than I thought) -- 840 square inches. Figure shipping at $6.25 in the US via Priority. This covers the cost and PayPal fees. Should be here in a couple weeks. SY gets the first set.

Why, silly hare, are you fleeing from the fierce jaws of the lion now grown tame?

8th December 2010

MJL21193

Account disabled at member's request

Which one a dem doohickeys is da opamp?

8th December 2010

jackinnj

diyAudio Member

This isn't in SY's article:

I did buy a bunch of the network caps and measured them on my RLC Bridge.

Why, silly hare, are you fleeing from the fierce jaws of the lion now grown tame?

8th December 2010

On Hiatus

Looks like you have to bump up the 20k series resistor in the RIAA eq.

"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."

8th December 2010

studeb

diyAudio Member

Before i get too far down this road, can you comment on the suitablilty of using this with a 0.5mV output Grado?

8th December 2010

On Hiatus

Level is fine. What's the DCR and inductance?

"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."