On Tue, May 03, 2005 at 08:25:21AM -0800, Jan Wuesten enlightened us
thusly
> Date sent: Tue, 03 May 2005 08:15:21 -0800 To:
> Multiple recipients of list CHIPDIR-L <[email protected]> Send
> reply to: [email protected] Organization: Fat City Network
> Services, San Diego, California
>
> > Hi folks.
> >
> > Mail problems a plenty at the moment. I am also looking for Data of
> > some sort on TO-3 transistors with EA7 printed on them, and '34' in
> > marker under the heat sink paste.
> >
> > They are in pairs in a range of Ultrasonic cleaners (Spanish), and
> > will be capable of at least 600V, Doing the sums, It could not be
> > more than 5 or 6 amps, but it's always nice to know a little before
> > you start shoving parts in and smoke testing them.
>
> if they are switching only and do not work in linear mode, this sounds
> VERY much like a TV deflection switcher like BU208A etc.
>
> BU 208 is pretty multi purpose, I would give those a try.
>
> If you need data, I can email you some off the list.
>
I had actually reached into my stock of to3 transistors (which are
stored in drawers stacked sideways), rediscovered Newton's Law of
Gravity and extracted some BU208s. (8a/1500V). You always wonder if
these parts are 6kv/600A in some magic new device.
Thanks , but I'll skip the data and waste some BU208s
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
INET: [EMAIL PROTECTED]
Fat City Hosting, San Diego, California -- http://www.fatcity.com
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