[Boatanchors] [BoatAnchors] 125 VAC Line? Make Your BA's Happy, Cheap.

[Brian]

Hello Dave,

Valuable post for people not in the know. I've been doing this for years, 
particularly with European stuff rated at 220 Vac when the standard pressure 
in Australia is alleged to be 230 Vac, whereas what is received is in fact 
mostly 240 to 260 Vac.

However, re your last paragraph: as soon as there is Voltage across the 
primary, there is magnetising current. So, no load is needed to measure the 
'new' output. I would be interested to know where you picked up your 
(un)factoid.

73 de Brian, VK2GCE.

On Friday, January 15, 2016 4:00 AM , you said:

<snip>
Important Tip:  A transformer "line bucker" acts as
an "autotransformer."  To measure the output voltage
accurately, you must connect a load- even a small one.
The load current sets-up the magnetic field the
autotransformer needs to work.

73 Dave AB5S