Threshold FET/10 He Service Manual - Page 2 - diyAudio
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Old 27th May 2009, 04:38 PM   #11
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Default PCB

I'm going to re-engineer it soon !
Very surprise with servo control and parallel differential stage !

There's no coupling cap and used +/- 18V REG

Thanks
Anadigit
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Old 27th May 2009, 04:42 PM   #12
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Mother board without diff module look like PASS X2 without UGS module !

Schematic coming soon !

Thanks
Anadigit
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Old 7th June 2009, 01:15 PM   #13
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I have the full and official Threshold FET-10 He diagram: 7 pages that (high-resolution).

I send this full Diagram to Anadigit and ZenMod to help them in their work: I also study an upgrade for my FET-10, so I am very interested in sharing your ideas, particularly regarding parts replacement.

I hope we will design a "state of the art" upgrade for this grand father preamp: be aware that mine is far better than 99% of the current preamps actually still in production! With my SA/6e class A monoblocs, this preamp is a killer ...


Nounours
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Old 7th June 2009, 02:58 PM   #14
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Default Hi,

Give me a few weeks to completed them for upgraded PCB !

Thanks
Anadigit
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Old 9th June 2009, 10:01 AM   #15
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take your time and I hope you will provide us good ideas for this upgrade !!

I also work on changing some parts for better ones and will keep you informed when I have defined which ones I replace...

Nounours
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Old 11th May 2012, 03:03 PM   #16
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Does this continue somewhere else? Where's the diagram? Where is the "state of the art" upgrade design?
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Old 12th May 2012, 07:19 AM   #17
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