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Old 16th January 2020, 01:13 PM   #31
augustoriodosul is offline augustoriodosul  Brazil
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Hi all,

Exicon - UK are legitimate by Profusion, Richard Phillips
Sales Coordinator. In Thailand I bought K1058 and J162 from Tayda Electronics, they seem to work well.
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Old 16th January 2020, 01:49 PM   #32
EUVL is offline EUVL  Europe
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> In the circuits I've seen the difference in Vgs for devices is lost in the negative feedback,

I use them in a number of circuits without global feedback.
UTHAiM -- Just for Fun
The XEN XELF Headphone Buffer

> what matters to distortion is the transconductance match

See :
UTHAiM -- Just for Fun

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Old 16th January 2020, 04:36 PM   #33
Mark Tillotson is offline Mark Tillotson
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Ah, yes that's an issue then.
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Old 18th January 2020, 12:21 AM   #34
jackinnj is offline jackinnj  United States
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Originally Posted by EUVL View Post
> Vgs at 100mA.
> The set I just sent were 1.46 for the P's and 1.57 for the N's
> If you match enough of them the Vgs can be better than +/-5%

That means you are offering single point Vgs match at 100mA;
N-N or P-P to 10mV Vgs; And N-P to 100mV Vgs ?

I'm not going to buy another 200 devices, I don't think I could, but there are enough such that you'll get 20 or more +/- 0.03 Volts, P to P, or N to N.

The Toshiba's have higher transconductance.
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Old 20th January 2020, 01:09 PM   #35
keilau is offline keilau  United States
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Originally Posted by jackinnj View Post
I have a couple hundred:
Jack came through for me with flying color. Better price than any UK seller of the Exicon. Delivery by USPS priority mail is super fast.

The Vgs at 100ma is marked at the back of each device. Genuine Japanese Renesas NOS.
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