Schematics and Help for old Threshold ++

catno · 21st July 2004, 04:43 PM

Dear Colleagues and home constructors,

I am a big fan of the older Threshold series, so I have the
Fet One
Fet 2 MKII
Fet 9/e
SA/3

The very good FET One is having a constant noise in the back, independently which source or volume. Do you know about this problem and how to fix it?
Where can I get the schematics of these Amps?
I heard also I can upgrade the SA/3 for example, do you know where I can get some hints or help about it?
On more question: I didn't find any hint between the difference of the Fet 9 and Fet 9/e? Where can I find the technical specifications of old Threshold amps?

Thank you very very much for any help and have a nice day

Andre

Nickolas K. · 22nd July 2004, 08:31 AM

Search in the forum and u'll find answers to most of ur questions.

Nick

Upupa Epops · 22nd July 2004, 09:02 AM

Ask Nelson

.

catno · 22nd July 2004, 06:43 PM

Mhh,
no I didn't find exact matches and most of the old url and attachements are not still there :-(

But thank you for the tip

highbias · 24th July 2004, 02:51 AM

The older Threshold equipment is very good. I've owned a few pieces in past years, CAS2, S-300, FET 10. They are welkl worth doing a complete and proper restoration to keep them in top condition.

Mark

21st July 2004, 04:43 PM	#1
catno diyAudio Member Join Date: Jul 2004 Location: Hamburg	Schematics and Help for old Threshold ++ Dear Colleagues and home constructors, I am a big fan of the older Threshold series, so I have the Fet One Fet 2 MKII Fet 9/e SA/3 The very good FET One is having a constant noise in the back, independently which source or volume. Do you know about this problem and how to fix it? Where can I get the schematics of these Amps? I heard also I can upgrade the SA/3 for example, do you know where I can get some hints or help about it? On more question: I didn't find any hint between the difference of the Fet 9 and Fet 9/e? Where can I find the technical specifications of old Threshold amps? Thank you very very much for any help and have a nice day Andre

22nd July 2004, 08:31 AM	#2
Nickolas K. diyAudio Member Join Date: Apr 2002 Location: Athens	Search in the forum and u'll find answers to most of ur questions. Nick __________________ Is this phase one of Lumpy Gravy?

24th July 2004, 02:51 AM	#5
highbias diyAudio Member Join Date: May 2004 Location: Salt Lake City, Ut	The older Threshold equipment is very good. I've owned a few pieces in past years, CAS2, S-300, FET 10. They are welkl worth doing a complete and proper restoration to keep them in top condition. Mark __________________ Now I too Have a Cool Screen Name!

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22nd July 2004, 09:02 AM	#3
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	Ask Nelson .

22nd July 2004, 06:43 PM	#4
catno diyAudio Member Join Date: Jul 2004 Location: Hamburg	Mhh, no I didn't find exact matches and most of the old url and attachements are not still there :-( But thank you for the tip

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