LED displays (TIL305, TIL308, etc.)

Roy J. Tellason rtellason at verizon.net
Wed Oct 1 19:41:38 CDT 2008


On Wednesday 01 October 2008 13:47, Chuck Guzis wrote:
> On 1 Oct 2008 at 13:10, Dave McGuire wrote:
> > > Yeah,  but a transformer,  bridge rectifier,  and filter cap is
> > > *so* much
> > > simpler.
> >
> >    Ugh. ;)
>
> I was under the impression that old "B+ supply" transformers were
> getting hard to find.  Not so, apparently.  I popped open a 1990's
> stereo receiver that was about to hit the junkpile to see what might
> be salvaged (one of the hybrid output ICs had fizzled and would cost
> more to replace than the receiver was worth)--and found a 70-0-70
> (140vct) transformer in the power supply.  Perfect for a Nixie
> application.

Sounds good.  And that's why I throw almost *nothing* away.  :-)

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin



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