Re: Component Salvage - the TV Set

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: robert & june heidlebaugh <rheidlebaugh-at-desertgate-dot-com> 

Matthew: I strip old TV and computer monitors all the time. The picture tube
is a dangerous problem if you do not break the vacuum seal in the center of
base of the tube socket. I just use a small phillips screwdriver and tap it
with a heavy tool or pliers to snap off the seal and let it fill with air.
It then is just an old piece of glass to break and throw away like any other
broken glass. But rember all broken glass is sharp so be careful and don't
get cut.
    Robert   H
-- 


 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > Date: Fri, 23 Jan 2004 08:11:11 -0700
 > To: tesla-at-pupman-dot-com
 > Subject: Component Salvage - the TV Set
 > Resent-From: tesla-at-pupman-dot-com
 > Resent-Date: Fri, 23 Jan 2004 08:44:29 -0700
 >
 > Original poster: Matthew Smith <matt-at-kbc-dot-net.au>
 >
 > Hi All
 >
 > As one always looking out for "bits" for coiling and other experimentation,
 > I've had quite a good find in an old, large TV.  For those on a budget or
 > who, like me, like to work as much as possible with recycled components, I
 > thought I'd share my finds:
 >
 > Good stuff
 > ----------
 > * Degaussing coil.  Loosely wound, quite a lot of copper here.  May be
 > enough for a small (tabletop) secondary.  Unlike so many pre-wound devices,
 > no glue!
 > * Power transformer.  Wow - this must be old, no SMPS!  This transformer is
 > 240V in, 6.4-0-120V out.  The set itself is only rated to 150W - I wonder
 > how much current I could get at 120V.  The core is as large as one from a
 > medium MOT. Looks promising as a supply for an SSTC.
 > * Power supply board.  Diodes and chokes could probably be used with the
 > transformer, but I'd replace the capacitors due to age.
 > * Flyback transformer.
 > * Voltage tripler unit.  Looks pretty meaty.
 > * Huge heatsinks.  They have sockets for T03 semis and are slotted to
 > accommodate the plug-in boards.  Off with the sockets, on with TO220
 > insulating kits!  I don't know what the dissipation for these is, but
 > should be up to SSTC or flyback driver duty.
 > * Plenty of TO3 power transistors (bipolar).  I'm unlikely to use these
 > myself, but fine for things such as flyback drivers.  (Especially the one
 > that was driving the flyback!)
 > * Earthing braid around tube.  Makes good, er, earthing braid...
 > * Lots of passive components, including many high-wattage resistors.  The
 > boards are all single-sided, so desoldering is a breeze.
 > * Plywood case.  Can either make a box for your equipment or go in the
 > winter fire!
 >
 > Bad stuff
 > ---------
 > * Tube.  I have to find somewhere to dispose of this.  I try to avoid the
 > dump since they charge...
 > * Various pieces of metal.  Far too many holes to make them useful for
 > anything - drop off at scrap metal depot when I go to get refrigeration
 > compressors for my vacuum system.
 >
 > Warnings
 > --------
 > * Implosion risk from tube.  HANDLE WITH CARE.
 > * These big'uns are HEAVY.  Nearly busted a gut carrying it over uneven
 > ground and loading it into the already packed back of my 4x4.  Lift with
 > your legs!
 > * Aussie salvagers: watch out for redbacks - I found one (empty) redback
 > web in their.  US salvagers: since they're virtually the same critter,
 > watch out for black widows.
 >
 > Conclusion:  Well worth picking over provided you have somewhere to dispose
 > of the tube.
 >
 > Cheers
 >
 > M
 >
 > --
 > Matthew Smith
 > Kadina Business Consultancy
 > South Australia
 > http://www.kbc-dot-net.au
 >
 >