| Replacement for 2SK389BL? - Click HERE for Original Thread |
| roger-k |
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? |
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| Nelson Pass |
2SK370's are coming from Toshiba, and they look to be an
excellent replacement.
:cool: |
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| jackinnj |
| quote: | Originally posted by Nelson Pass
2SK370's are coming from Toshiba, and they look to be an
excellent replacement.
:cool: |
Isn't that a single? I see 2SK2145 and 2SK3320 duals in the Toshiba lineup but their noise figures are 10x higher. |
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| Irakli |
| Just ordered 20 LS389B form Linear Systems distributor. They are $7.20 each. Quite pricy :) |
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| LineSource |
| quote: | Originally posted by Irakli
Just ordered 20 LS389B form Linear Systems distributor. They are $7.20 each. Quite pricy :) |
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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| Irakli |
| quote: | 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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Isn't 6-12 mA I_DDS the same for 2SK389BL ? |
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| roger-k |
| OK, folks. Thank you very much. |
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