Bob Roberts isolation transformer

SilverDuck

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I just got my iso transformers from Bob Roberts. They have 2 tabs at the top, 2 at the bottom.

I am treating the PRIMARY as input, and SECONDARY as output.

I am putting 124V AC to the PRIMARY, but getting 136V AC at the SECONDARY.

Do I have it wired wrong? It keeps blowing the fuse on my monitor chassis.
 
I just got my iso transformers from Bob Roberts. They have 2 tabs at the top, 2 at the bottom.

I am treating the PRIMARY as input, and SECONDARY as output.

I am putting 124V AC to the PRIMARY, but getting 136V AC at the SECONDARY.

Do I have it wired wrong? It keeps blowing the fuse on my monitor chassis.

This might help.

http://www.therealbobroberts.net/xformer.html
 
I just got my iso transformers from Bob Roberts. They have 2 tabs at the top, 2 at the bottom.

I am treating the PRIMARY as input, and SECONDARY as output.

I am putting 124V AC to the PRIMARY, but getting 136V AC at the SECONDARY.

Do I have it wired wrong? It keeps blowing the fuse on my monitor chassis.

Try putting your 124 onto the secondary. that should probably give you about 115 or so on the primary, which should be fine for your monitor...
 
Try putting your 124 onto the secondary. that should probably give you about 115 or so on the primary, which should be fine for your monitor...

Bingo. This is what I tried and it seems to be perfect. Thanks!
 
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