[TechAssist] Re: Vacuum tubes...
- From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 3 Oct 2002 08:30:09 -0500
Don'cha wish you still had the old tube checker? I do. Although I worked on
tube sets back in the early 80's, at present I couldn't tell if a tube was
bad using an ocilloscope and testing for gain or MU as it was known back
then.
Damon Brunger
damon101@xxxxxxxxxxxxxx
Telrad Electronic Services
Ft Wayne, IN 46815
----- Original Message -----
From: <gulftech@xxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, October 02, 2002 8:51 PM
Subject: [TechAssist] Re: Vacuum tubes...
>
> Walter and all,
>
> That brings back memories. As a kid, I would take tubes to the local
> drug store for testing. Early in my Navy career, I had two different
> Chiefs bring in tubes from their television for me to test. Both sets
> were scapped. The first Chief had no idea of a tube chart. He just
> plugged in the tubes wherever they would fit. The second left the tubes
> in a grocery bag in his car for some time. Half of them broke.
>
> There are still some folks who believe the tube amplifier superior to
> semiconductors. One's available at present are major $$. I sent my
> Hickock tube checker and many hundreds of tubes to the landfill 20 years
> ago.
>
>
> Ken Smith
> Gulf Technical Services
> 3034 Gulf Breeze Parkway
> Gulf Breeze, FL 32563
> 850-934-8324 (Voice) 850-932-0819 (Fax)
>
>
> On Wed, 2 Oct 2002 11:31:02 -0700 (PDT) walter wood
> <wwood_38478@xxxxxxxxx> writes:
> >
> >
> > US OLD Timers, did not use, and still do not use
> > such a shotgun approch to repair.
> > Tubes were NOT all that undependable, and certainly
> > didn't all wear out at the same time.
> > It depended on the equipment, of course, but I've
> > seen some last 40 years or more.
> > If you have one that is not lit up, it may still be
> > good.
> > It may have simply lost it's filiment voltage.
> > Why do you suspect the tubes??
> > The real problem is more likely to be a missing
> > voltage or a bad capacitor, just like today's
> > stuff.
> > Walter
> >
> > > > Hello Techs,
> > > >
> > > > A customer turned in a tape player,that don't
> > > have audio out,remember the
> > > reel-to-reel ones? I suspect it is the vacuum
> > > tubes,so I decided to replace
> > > all of them...all 8,didn't the old timers used to
> > > do that,replace all them
> > > tubes?
> > > >
> > > > Any good suppliers you know of?
> > > >
> > > > Thanks,
> > > > Marcello for
> > > >
> > > > Electronics Service Inc.
> > > > 808 841-1560
> > > > www.pinoyelectronics.com
> >
> >
> > =====
> > Walter Wood
> > Future Tech Home Center
> > 2786 Hwy. 43 N.
> > Lawrenceburg Tn. 38464
> > 931-829-3337
> > Fax 931-829-4044
> > mailto:wwood_38478@xxxxxxxxx
> >
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