I was browsing an old electronic parts shop in my city when I accidentally spotted some 2sk240s with a grade I had never seen before. I was curious, so I picked up a few. I checked the Toshiba datasheet, but I couldn't find this grade listed. Do they really exist?
Thanks
Thanks
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I ever found this part in vintage amplifier . But i forget the brand and model . I update later .
That would imply there are two 2SK170Y in these 2SK240Y packages?
Measure the Idss, the The specs are "Y : 1.0 ~ 3.0" [mA].
Actually, I used my last set of these in my latest riaa project.
Not "Y"-grade but BL´s, but they do indeed exist, although more or less extinct in this day and age. Congrat´s on a great find 👍
Not "Y"-grade but BL´s, but they do indeed exist, although more or less extinct in this day and age. Congrat´s on a great find 👍
Those 'BL's, along with 'MC transformer', gain settings of impressive 66 / 72 dB, and a nonal tube support... for such a gain I guess ECC83.
Curious about the involved circuit! It's from MC to Line level (150mV)
Typo 'the The' in #7...
@ bango: what is the Idss actually of those 2SK240Y's?
Curious about the involved circuit! It's from MC to Line level (150mV)
Typo 'the The' in #7...
@ bango: what is the Idss actually of those 2SK240Y's?
Thanks for the info! Even though this is actually an old thread
Exactly, but with no markings
Not Y, just for reference
I've measured a few of them, and they do fall within that Idss range (mostly in range 2-2.5mA)
Yes, the BL grade (also GR & V) does exist and are listed in the Toshiba datasheet. However, the Y grade isn't mentioned there. Which is why I asked.
Thanks anyway!