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Replacement For Toshiba 2SK170/2SJ74
Replacement For Toshiba 2SK170/2SJ74
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Old 1st November 2018, 09:44 PM   #251
KevinHeem is offline KevinHeem  United States
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Replacement For Toshiba 2SK170/2SJ74
B&D enterprises is selling Toshiba 2SJ74/2SK170 pairs which are NOT matched. I gambled $100 and bought 10 pairs. Here's the Idss range I got:

SJ74: 10.0,10.0,9.9,9.3,8.7,8.6,8.2,7.5,7.3,6.7

SK170 10.1,10.0,10.0,10.0,10.0,9.8,9.5,9.2,9.0,8.9
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Old 1st November 2018, 10:09 PM   #252
Skylar88 is online now Skylar88  South Africa
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That's pretty good. A few matched 74/170 pairs and also some reasonably matched 170 pairs. Your gamble paid off.
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Old 1st November 2018, 10:24 PM   #253
KevinHeem is offline KevinHeem  United States
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Replacement For Toshiba 2SK170/2SJ74
Yeah not bad considering current pricing. If you look closely there could be a couple reasonably close 74/74 pairs left over. Aleph J anyone?
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Old 1st November 2018, 10:35 PM   #254
6L6 is offline 6L6  United States
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Replacement For Toshiba 2SK170/2SJ74
Totally close enough for an Aleph J.

Start buying parts, that’s an amazing amp.
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Old 5th November 2018, 02:33 PM   #255
Dennis Hui is offline Dennis Hui  Canada
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Replacement For Toshiba 2SK170/2SJ74
Hey Kevin,

The jfet values look fine. However, this is both good and bad news.

The good news is you have at least enough for 2 amps.

The bad news is you may find yourself going to "Amplifier Anonymous" meetings
in the future.

But until then, do consider the Aleph-J.

Dennis
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Old 6th November 2018, 12:14 AM   #256
KevinHeem is offline KevinHeem  United States
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Replacement For Toshiba 2SK170/2SJ74
I use conventional speakers that drop down to 3ohm in the mid bass so I think the Aleph J is not for me. Anyway the 74/74 pairs have already moved on to another member who is building the Aleph J.
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Old 14th November 2018, 01:06 PM   #257
uli is offline uli  Austria
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got hundreds of original Toshiba devices.......
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