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Re: [TCML] RE: 2N3005 Transisotrs : was:RE 555 timer



Computer monitors: 
the 3005 was replaced w/2SC4747,
,HOT horizontal output trsnssistors
j.


 
On Wed, 19 Mar 2008 10:07:28 -0400, "McCauley, Daniel H"
<daniel.h.mccauley@xxxxxxxx> said:
> 
> Exactly.  Older designs keep calling for them because they are just that
> - older designs.  Circuits designed before less expensive devices are
> available.  
> 
> Remember, with 2N3055 nowadays, you are paying for the package.  But
> with thermally better devices these days, they can get away with putting
> a similar (or better) die in a standard TO-220 package which is much
> cheaper.
> But of course, if you have them around, go ahead and use them.
> 
> Dan
> 
> 
> 
> 
> 
> I am sitting on a veritable stash of them here in the DaveCave(tm)
> 
> And the really strange thing is that there are so many better devices
> out
> there but these older designs keep surfacing and calling for a 2N3055
> 
> Go figure...
> 
> Cheers!
> Dave
> 
> > -----Original Message-----
> > From: tesla-bounces@xxxxxxxxxx 
> > [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of bunnykiller
> > Sent: Tuesday, March 18, 2008 11:53 AM
> > To: Tesla Coil Mailing List
> > Subject: Re: [TCML] 555 timer
> > 
> > 3055 transistors??   I have about 150 of them ...  :)  yes I 
> > have them ALL
> > and my wife thinks Im a packrat... 
> > 
> > Scot D
> > 
> > 
> > McCauley, Daniel H wrote:
> > 
> > >Don't worry.  You can't get a 3055 anywhere.
> > >
> > >Thats real old timing there.
> > > 
> > >
> > >
> > >Thanks guys, I guess I'll order another or first try the radio shack
> > >down the road (the local one stopped selling most 
> > components, and only
> > >sells devices now, you cannot even get a 3055 transistor, or 
> > a rectifier
> > >diode!  It is sickening.)
> > >
> > >Scott Bogard.
> > >
> > >McCauley, Daniel H wrote:
> > >  
> > >
> > >>555 timers come in a variety of different packages.
> > >>You are thinking of the DIP-8 through hole package.
> > >>What they sent you was a surface mount version.
> > >>Radio Shack still carries 555 timers.
> > >>
> > >>Dan
> > >>
> > >> 
> > >>
> > >>
> > >>
> > >>Hey Guys,
> > >>     This is off topic I know, so please respond off list.  
> > I ordered 
> > >>a
> > >>555 timer for a small electronics project, and when it came it is 
> > >>extremely tiny.  Less than a half a centimeter at it's 
> > widest point.  
> > >>I seem to remember seeing these in Radio Shack (back when 
> > they still 
> > >>sold
> > >>components) and they were bigger, about a centimeter long, is there 
> > >>some reason mine is tiny.  I only care because it is going 
> > to be very 
> > >>difficult to solder and mount to anything.  Thanks guys.
> > >>
> > >>Scott Bogard.
> > >>
> > >>
> > >>_________________________________________________________________
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> > >>    
> > >>
> > >
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