View Single Post
  #16   Report Post  
Posted to rec.audio.tubes
Phil Allison Phil Allison is offline
external usenet poster
 
Posts: 1,444
Default Variac as a Troubleshooting Aid

"Peter Weeke the CRIMINAL ****WIT ****** "


Isolation transformers are critical for any workbench, and after good
hand-tools the first thing any electronic hobb7 person should get...
perhaps even before said tools.


** Totally false.


Isolation transformers need only be used when working on a live chassis
item.

Otherwise, you do NOT need one and using one INCREASES the
electrocution
hazard for a technician.



See: http://sound.westhost.com/articles/electrocution.htm


a.. Do not assume that isolation or stepdown transformers are safe - they
are not. Isolation transformers will cheerfully kill you if you become
connected across the output - an isolation transformer has no active
(live)
and neutral. Many stepdown transformers do not provide isolation.
Isolation
transformers can lead to a complacent attitude, and one lead can connect
to
chassis if there is an insulation failure - with no effect on the
equipment
or transformer. The other lead is now a killer! Isolation transformers
will
prevent an electrical safety switch from operating if a fault develops on
the isolated side!



( snip this totally ASD ****ed CRIMINAL IDIOT's brain dead abuse )

See: http://sound.westhost.com/articles/electrocution.htm


"Hot Chassis" items can happen for any number of reasons



** In which case the item is faulty and will trip a breaker or ELCB

....... INSTANTLY !!

Only a INTENTIONAL hot chassis items need an Iso Tranny for use with
scopes etc.


An isolation transformer is a simple precaution.




** WRONG !!!!!!!!!!!!!!!!!!!!!

It is a lethal POS that kill technicians.

God , how I hope YOU are the next one


See: http://sound.westhost.com/articles/electrocution.htm



....... Phil