Saving Circuit Board w/o Tube

[Outland]

Just wondering, kind of scared.

[zeno]

Almost any solid state set will bleed off in minutes through the
focus divider that is usually built into the tripler or FBT.To be sure
hook a screw driver to a clip lead. Attach the other end to the
CRT ground. Usually there is a bare wire across the CRT where it looks
painted black. That is the best ground. slide driver under the boot &
touch arround the middle of it. To unhook slide the boot to one
side at a 90 deg angle to the wire. lift then slide back.
Only trouble with chassis swap is you may have to make a few adjustments.
No big deal.

BTW DO NOT do this with an old Sony. They have a coax lead & must
be handled with care !

73 Zeno
LFOD !

[Electronic M]

Originally Posted by Outland

Just wondering, kind of scared.

Ever on a dry winter day shuffled your feet across carpet and got a really mean zap off a doorknob? The voltage and charges are in a CRT are very close to that.

I've even got bit by CRTs that we're turned off less than 10 sec before the bite, and while it will surprised you the first time it ain't dangerous unless you have a heart condition. It takes 30mA to kill...A flyback transformer when powered should not be able to supply the CRT more than 2uA (0.002mA). The biggest danger is the shock triggering your reflexes and your arm smashing into something full force as it retracts... been there done that had to track down convergence magnets and resolder a ground wire I snapped (though that Zap was the more dangerous AC HV on the yoke of a 60s color set)... Deflection can kill if you mess with it carelessly.