Phono RIAA amplifiers

QSXM3 FET

Started by Marcos

Replies: 1
Views: 9,921

August 06, 2005, 10:23:18 AM
by peranders

QSXM3 hum problems

Started by peranders

Pages1 2

Replies: 18
Views: 19,063

April 11, 2006, 11:58:37 AM
by peranders

QSXM2 - The Swiss Cheese

Started by DFM

Replies: 2
Views: 8,187

February 17, 2007, 05:40:37 PM
by DFM

QSXM2: Greetings from Germany / Bulgaria!

Started by sinigersky

Replies: 5
Views: 8,977

April 16, 2007, 06:55:52 AM
by peranders

QSXM2 balance output

Started by gianluca

Replies: 5
Views: 9,002

September 03, 2007, 07:07:32 PM
by peranders

SYMMETRICAL CARTRIDGE-CONNECTION

Started by roberto.missoli

Replies: 5
Views: 9,335

December 13, 2008, 08:59:06 PM
by peranders

Obsolete MAX420

Started by wopo

Replies: 2
Views: 7,146

October 18, 2009, 03:12:56 PM
by goldkenn

QSXM3 build check

Started by goldkenn

Replies: 4
Views: 7,207

October 19, 2009, 07:51:43 PM
by goldkenn

QSXM2: Start preparing!

Started by goldkenn

Replies: 6
Views: 8,648

October 25, 2009, 04:31:13 PM
by goldkenn

QSXM2 doubt

Started by gianluca

Replies: 6
Views: 9,822

October 28, 2009, 11:28:10 AM
by peranders

Question about QSXM2, regarding our email conversation

Started by goldkenn

Replies: 3
Views: 8,036

February 19, 2010, 01:22:34 PM
by peranders

newbie in QSXM2 , just received PCB

Started by Edmund Chan

Pages1 2

Replies: 15
Views: 17,324

June 22, 2010, 02:29:02 PM
by Edmund Chan

QSXM3 Noise Floor Or Hum

Started by goldkenn

Replies: 9
Views: 11,732

August 18, 2010, 12:55:04 PM
by goldkenn

How To Change Gain For QSXM2 and QSXM3

Started by goldkenn

Replies: 6
Views: 12,459

March 07, 2011, 06:22:26 AM
by peranders

I am confusing recently about transistor matching

Started by goldkenn

Replies: 1
Views: 9,436

March 11, 2011, 10:51:57 AM
by peranders

QSXM2 build - TRANSISTORS ARE RED HOT!!!

Started by AAmer75

Replies: 1
Views: 9,313

September 13, 2011, 10:02:48 PM
by peranders

DYNAVECTOR 20XL Cartidge on QSXM2 RIAA amplifier

Started by AAmer75

Replies: 1
Views: 10,500

September 14, 2011, 06:22:52 PM
by peranders

Ribbon microphone

Started by roberto.missoli

Replies: 6
Views: 12,119

November 14, 2011, 09:59:26 PM
by peranders

QSXM2 current neccesary

Started by fantast

Replies: 2
Views: 9,487

December 22, 2011, 08:30:48 PM
by fantast

input bias servo with OP177FPZ

Started by fantast

Pages1 2

Replies: 16
Views: 21,635

December 31, 2011, 07:21:52 PM
by peranders

Critical transistors in QSXM2

Started by fantast

Replies: 5
Views: 11,505

January 08, 2012, 08:52:25 PM
by fantast

Transistor select for QSXM2

Started by horvlas

Replies: 6
Views: 13,814

August 09, 2012, 06:36:17 PM
by peranders

SSM version

Started by fantast

Replies: 2
Views: 9,872

November 13, 2012, 07:37:28 PM
by fantast

EMI filter MuRATA 10nF/100V Max 6A

Started by gipione

Replies: 3
Views: 10,284

March 16, 2013, 07:42:14 AM
by peranders

Correct load for MM

Started by zz1969

Replies: 2
Views: 9,614

March 22, 2013, 12:48:21 PM
by zz1969

QSXM2 questions.

Started by zz1969

Replies: 2
Views: 9,527

October 08, 2013, 08:30:13 PM
by fantast

RIAA correction

Started by fantast

Replies: 1
Views: 9,094

October 13, 2013, 10:08:30 PM
by peranders

qsxm3

Started by yiancar

Pages1 2 3 4

Replies: 55
Views: 46,396

November 02, 2013, 07:41:46 PM
by peranders

QSXM2 - considering buying PCB, questions

Started by tk-don

Replies: 1
Views: 8,878

January 21, 2014, 09:07:10 PM
by peranders

Replacement, Operational Amplifier DIL-8, MAX420EPA+

Started by zz1969

Replies: 5
Views: 12,429

February 05, 2014, 10:39:03 PM
by peranders