Alt-BEAM Archive
Message #11984
To: beam@sgiblab.sgi.com
From: Bruce Robinson Bruce_Robinson@telus.net
Date: Thu, 16 Mar 2000 15:57:35 -0800
Subject: [alt-beam] Re: FRED bread boarded...problems
Corey Centen wrote:
>
> Thanks again for the info...regarding transistor orientaton - what
> pin is the one with the arrow going to it?
The arrow is on the emitter lead (doesn't matter which way the arrow
points, it's always the emitter.
Bruce
11985 Thu, 16 Mar 2000 15:56:32 -0800 Re: mini motors "Sathe Dilip"
>
>
> Zane Bryan wrote:
>
> > Anyway, on the BEAM (so to speak): Have you tried axial capacitors
instead
> > of radial? I'm working on a more compact design and saw "miniature"
axial
> > caps at "suitable" ratings at digi-key...just looking for insight as to
any
> > potential problems...
>
> I haven't used them but if the characteristics (particularly the leakage
> current, internal resistance) are OK, they should work fine. They were
> the first types to be manufactured. Radial types are now preferred for
> their small foot print on the PCB - you know; real estate. Radials are
> (probably) also better off with vibrations. Shorter leads = more
> strength also no lead bending required. I have seen some bulky axial
> caps secured to the PCB using blobs of silicon cement (and sometimes
> with cable ties) but not radials. Some of those big, so called computer
> grade radials come with screws for mounting strength though.
>
> Dilip
> ----------------------------------------------------------------------
> The early bird may get the worm, but the second mouse gets the cheese.
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>
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