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FS: 2SJ109 + 2SK389 (Genuine, NOS)

SOLD: 2SJ109 + 2SK389 (Genuine, NOS)

SOLD

Update: all JFETs are gone.
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Genuine Toshiba 2SK389s (NOS) purchased many years ago in Sweden before the world turned bad.

10 pcs. 2SK389GR left, all same date code "2K":

IDSS-measurement (DGS1/DGS2):
1. 3.5/3.5mA
2. 3.1/3.1
3. 5.9/5.9
4. 4.5/4.5
5. 3.5/3.5
6. 5.1/5.1
7. 3.4/3.5
8. 4.1/4.1
9. 3.2/3.2
10. 3.4/3.4
 

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Last edited:
The 2SJ109s are gone.

I went through the hassle of measuring IDSS for the remaining 2SK389s:

5 pcs. 2SK389V, same date code "2F":
1. 13.1/12.9mA
2. 11.8/11.6mA
3. 11.8/11.7mA
4. 11.7/11.5mA
5. 12.8/12.6mA

nice pairs: 1+5, 2+3


10 pcs. 2SK389GR, same date code "2K":
1. 3.5/3.5mA
2. 3.1/3.1
3. 5.9/5.9
4. 4.5/4.5
5. 3.5/3.5
6. 5.1/5.1
7. 3.4/3.5
8. 4.1/4.1
9. 3.2/3.2
10. 3.4/3.4

nice pairs: 1+5, 2+9, 7+10

I've seen better and worse pairs than these: 3+6, 4+8

Now including free shipping world wide. 🙂
 
The 2SK389Vs are now gone.

Left are:

10 pcs. 2SK389GR, same date code "2K":
1. 3.5/3.5mA
2. 3.1/3.1
3. 5.9/5.9
4. 4.5/4.5
5. 3.5/3.5
6. 5.1/5.1
7. 3.4/3.5
8. 4.1/4.1
9. 3.2/3.2
10. 3.4/3.4

nice pairs: 1+5, 2+9, 7+10

I've seen better and worse pairs than these: 3+6, 4+8

30 USD / 26.90 EUR each including PayPal fee & free shipping.
 
Found one more unused 2SK389GR (date code 2K) in one of my treasure boxes: 4.4/4.4mA, let's call this one '11'.

Price adjusted too!

So now 11 pcs. 2SK389GR, same date code "2K":
1. 3.5/3.5mA
2. 3.1/3.1
3. 5.9/5.9
4. 4.5/4.5
5. 3.5/3.5
6. 5.1/5.1
7. 3.4/3.5
8. 4.1/4.1
9. 3.2/3.2
10. 3.4/3.4
11. 4.4/4.4

nice pairs: 1+5, 2+9, 7+10, 4+11

I've seen better and worse pairs than this pair: 3+6

Pairs 40 USD / 37.20 EUR
Singles 20 USD / 18.40 EUR

including PayPal fee & free shipping.
 
2SK389GR Curves

Now curvetraced...
 

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