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Yes, I was going to say something similar. J-FETs with just a "J" and noOn Wed, 15 Jul 2009 10:07:29 +0100, "N_Cook" <diverse@tcp.co.uk> wrote:
:ignoring the number part, only for depiction here
:like 2SA.... = A..... etc, just abbreviated forms
:
:Is there an earlier series where J123 meant J123 and different to a later
:2SJ123 ?
:
:
:
Siliconix (now Vishay) start some of their J-Fet devices with just a 'J'.
ie.
http://www.vishay.com/docs/70237/70237.pdf
IIRC Hitachi did the same thing with their TO3 fets like the J49/K134"Ross Herbert" <rherber1@bigpond.net.au> wrote in message
news:mv7r5516v99a3tmmhqgj7inadr9sbe8t8q@4ax.com...
On Wed, 15 Jul 2009 10:07:29 +0100, "N_Cook" <diverse@tcp.co.uk> wrote:
:ignoring the number part, only for depiction here
:like 2SA.... = A..... etc, just abbreviated forms
:
:Is there an earlier series where J123 meant J123 and different to a later
:2SJ123 ?
:
:
:
Siliconix (now Vishay) start some of their J-Fet devices with just a 'J'.
ie.
http://www.vishay.com/docs/70237/70237.pdf
Yes, I was going to say something similar. J-FETs with just a "J" and no
other 'missing' letters or numbers, are found quite commonly in group
amplifiers. Given that you repair quite a lot of these, I'm surprised you
haven't come across them. There's one amp (and which it is completely eludes
me at the moment, but it's something that I see quite often) has a couple of
these slung across signal lines as 'shorting switches', and they regularly
go leaky or short, giving low or no audio.
Arfa