Unlabelled and disconnected mains primary wires

[Grant]

My understanding of the term autotransformer is primary and secondary
electrically continuous, ie no electrical isolation

You're not looking for answers, are you?

Grant.

 

[Phil Allison]

"Nutcase Kook is So Full of Shit "

Does anyone have the generic name for these wasteful construction made in
or
for USA , for export kit ? the ones with a (electrically) continuous
single
primary winding

** Wot a load of utter bollocks
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Most audio amps made in the ** UK ** between the mid 1960s and late 1990s
had
multi-voltage, single winding AC transformers.

Check any old schem from Marshall, Vox or Sugden etc, et alia.

http://www.audiomisc.co.uk/JES/A21series2/A21series2.html

http://www.schematicheaven.com/marshallamps/jcm800_lead_mstvol_50w_2204.pdf

http://www.schematicheaven.com/voxamps/ac301960.pdf

http://www.schematicheaven.com/voxamps/ac151960.pdf

Nutcase Kook is Soooooo... Full of Shit




..... Phil

 

[Phil Allison]

Nutcase Kook is Sooooo Full of Shit

You can have multitaps on dual primary ones for variants on the theme of
110/240V, so not an exclusive term

** Nutcase Kook is Sooooooooooooo Full of Shit !!!




..... Phil

 

[David Nebenzahl]

You're not looking for answers, are you?

He rarely is. Just sitting at the bar bending the ears of whatever poor
saps sitting nearby are willing to listen to his ramblings.

 

[Cydrome Leader]

http://www.slpower.com/Upload/Technical/20070404102642455201154_41-32512F_ML
_Series.pdf


That transformer type is the 2 separate primaries, not the subject of this
thread.
Does anyone have the generic name for these wasteful construction made in or
for USA , for export kit ? the ones with a (electrically) continuous single
primary winding

You're right- they must have just cheapened their transformers. Condor
stuff used to have the 5 terminal primary windings. If you can find a
manual for an older generation "international linear power supply" how
those windings are setup is diagrammed.

They're not a single winding though, and not nearly as wasteful as 50Hz
mains frequency when it comes to excessive use of materials and size.