I will make The Pearl Phono. Usually I draw the PCB and etch it by myself. The 2SK389BL can sometimes be hard to get, so now I have the opportunity to insert a replacement for this.
Is there any replacement for this?
How will it be to use two 2SK170BL (or maybe others) in parallel and a 20 ohm resistor in series with each of them, similar to the first gain stage?
Is there any replacement for this?
How will it be to use two 2SK170BL (or maybe others) in parallel and a 20 ohm resistor in series with each of them, similar to the first gain stage?
Also Linear Systems has replacements.
The 2SK389 and 2SK170 are both available from LinearSystems in Fremont California:
http://www.linearsystems.com
LSK170:
http://www.linearsystems.com/datasheets/LSK170.pdf
LSK389:
http://www.linearsystems.com/datasheets/LSK389.pdf
Both are available in the three traditional current versions: A, B, and C.
-David
The 2SK389 and 2SK170 are both available from LinearSystems in Fremont California:
http://www.linearsystems.com
LSK170:
http://www.linearsystems.com/datasheets/LSK170.pdf
LSK389:
http://www.linearsystems.com/datasheets/LSK389.pdf
Both are available in the three traditional current versions: A, B, and C.
-David
Nelson Pass said:
Isn't that a single? I see 2SK2145 and 2SK3320 duals in the Toshiba lineup but their noise figures are 10x higher.
Irakli said:
What bias current are you using on the LS389B?
The "B" grade is spec'ed at I_DDS 6-12ma at Vds=10V.
Just want to get a rule of thumb..... Thanks
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