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Skorpio 8th April 2007 09:44 AM

Simple 2SK163 amp...

I have 4 pcs of 2SK163 from an old Luxman amp and I would like to use them in a simple linestage with approx. 6dB gain. The problem is that I am missing data....

I have made a small test, measuring the IDSS with gate and source shortes and with 10V supply:

1: 9.39mA
2: 9.24mA
3: 9.53mA
4: 9.56mA

The first stage will be a grounded source with 2SK163 and the second stage an emitterfollower (BJT). Supply is 40V to second stage and 35V to first stage (R-C filter).

I have simulated with good results with a J109 fet with 1k source resistor and 2k4 drain resistor.
But what will be the right values with 2SK163?

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