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Old 21st July 2004, 04:43 PM   #1
catno is offline catno  Germany
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Location: Hamburg
Default 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

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

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Old 22nd July 2004, 08:31 AM   #2
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Nickolas K.'s Avatar
Join Date: Apr 2002
Location: Athens
Search in the forum and u'll find answers to most of ur questions.

Is this phase one of Lumpy Gravy?
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Old 22nd July 2004, 09:02 AM   #3
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Location: Prague,Czech Republic
Ask Nelson .
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Old 22nd July 2004, 06:43 PM   #4
catno is offline catno  Germany
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Join Date: Jul 2004
Location: Hamburg
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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Old 24th July 2004, 02:51 AM   #5
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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.

Now I too Have a Cool Screen Name!
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