Bucking Transformer wiring

[Bash]

I disconnected one of the wires and put the multi-meter in between.

I connected the transformer as shown in the image at the top, and got 94 Volts.
So I connected the unit...

However, when I connected the Yamaha unit, it immediately blew the fuse I build in (and the fuse in the fuse box)

So I went back to using the 66 Volts.
Luckily the transformer still works perfectly.
The strange thing is that it now only rotates with the highest speed (no matter whether the speed controlling pedal is connected or not).
The speed-change part no longer seems to work.

Damn 

[sluckey]

One step forward, two steps back. Can you post a schematic of the Yahama unit? I still don't believe that unit only needs 65mA.

[PRR]

...65mA does not sound reasonable for a unit with a 2 speed motor ....

65mA @ 100V is 6.5 Watts, right?

It is a small motor. Bigger than a 3W clock motor but much smaller than a 65W duct-blower motor.



An autotransformer connection can work if there is no path for current from the wall into the audio and the user.

Transformers for {wall} to 100VAC are available in travel shops, to power appliances bought in the 100V area of Japan in other places. Be sure *transformer*. Things which just heat, like tea-pots and clothes-irons, can be run on a much smaller "power chopper" which makes a mess of electronics.

[PRR]

.

[Bash]

That is what I did.
I connected everything as in attached picture.

No idea what I fried, though.
Maybe in the weekend I have a bit more time to have a look.

BTW
The other image is the schematic I found of the unit.


EDIT:
Just looking at my picture I see what I screwed up.  I connected 5 and 10 instead of 1 and 6. 
Don't know why the multimeter read 94 Volts though, or why that would blow the unit.