All donors

EntertainmentShows up, but not every week

CRT television or monitor

Also called tube TV, CRT.

Not a donor. The tube can implode, the anode holds tens of kilovolts, the glass is leaded, and the useful copper is not worth the risk. Recycle the set whole.

A donor is the dead machine. The parts below are what is still worth removing from it. “Leave it” is a part that is physically in there and should stay in there: too dangerous, too worn, or only useful as part of a repair you are not doing.

What you are looking at
Lid, set asideSealed supplyMotor or pumpCord, inspect itOpen the dead one. Do not defeat the safety parts on a live one.

A scrapped machine is a box of parts that failed at different times. The reason it was thrown out is often one bad piece. The motor, the cord, the supply, and the screws are frequently still good. This index says which is which.

Why it is in the trash while the parts are not

It is a CRT. That is the reason.

Before you open it

Do this while it is still unplugged, cool, and not leaking. Do not.

Where the dead machine usually is

Take it to the e-waste site. Do not open it on the bench to be thorough.

How it comes apart

Do not. This entry exists so the index says so in the same place as the things that are worth opening.

Tools: your hands.

What to take

The table is the short version. The notes under it describe that part inside this machine, not only the general description.

Parts in this donor
PartCallHow manyHow oftenWhere to look
Speaker driverLeave it1–2usuallyInside.
Signal and hookup wireLeave itthe yokealwaysAround the neck.
Iron transformerLeave it1alwaysThe flyback.

Leave it

  • Leave it — present, not yours to reuseSpeaker driver1–2 · usually

    Ordinary speakers, and not worth the tube.

    Inside.

    Leave them.

    Fine, and still not worth it.

  • Leave it — present, not yours to reuseSignal and hookup wirethe yoke · always

    A deflection yoke. It is not a benign coil to unscrew for copper.

    Around the neck.

    Leave it.

    Leave it.

  • Leave it — present, not yours to reuseIron transformer1 · always

    High voltage.

    The flyback.

    Leave it.

    Leave it.