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Old 6th July 2005, 04:43 AM   #1
rsbay is offline rsbay  Germany
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Question Aleph Ono and FET matching

Hello,

I know I have to match the input FET's Q10 ... Q13 (2SK170) in the
moving coil part of the Aleph Ono. The question is how I should do
this and which are the parameters I have to take care of ?

Should I also match other devices in this circuit ?

Regards

Ralph
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Old 6th July 2005, 05:23 AM   #2
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Default Aleph Ono and FET matching

Fetmatcher circut
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Old 7th July 2005, 05:27 AM   #3
rsbay is offline rsbay  Germany
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Hello Walter,

thanks for your reply. Do you know with Idss is preferred for the Aleph Ono ?

Should I also match the IRFD9110 ?

Regards

Ralph
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Old 7th July 2005, 08:51 AM   #4
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Hi,

you will need a fairly low Idss to get the highest gain out of the ONO. I think it was around 4mA. Thereīs a large thread concerning this.
If you canīt get 170grīs you can also use blīs with different source resistors but then you canīt choose the highest gain setting. This shouldnīt be a problem with all but the most silent MCīs

William
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Old 10th November 2005, 03:37 PM   #5
VS is offline VS  Portugal
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Default Re: Aleph Ono and FET matching

Quote:
Originally posted by WALTER BURKHARD
Fetmatcher circut

Hi,

By the PCB color it seems you also have build a XOno clone. The original XOno have 2SK170BL or GR? And what about 2SK389 also ?

Can you resume all the diferences bettewn Ono and XOno?

Best regards,
VS
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