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Component Salvage - the TV Set
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