27-12-2011, 09:45 AM
Also, thanks from me for posting that link - I'd forgotten that BBC EGNs were available externally. Whenever the subject of isolation transformers comes up, I find myself repeating the same old story - now I just need to give that link 
Looks like a useful transformer, with two separate secondary windings, meaning you could have two outputs that are isolated from the mains and each other. No need for any of this isolation in your case, as already discussed, but still an interesting option for anyone who collects US gear.
In your position, I might be tempted to hang on to this transformer for use as a genuine isolation transformer, and wait for an auto-transformer. These tend to be physically smaller and cheaper than isolation transformers as they need rather less copper. Of course, any mains transformer with dual 120V primaries can be used as an auto-transformer - just disregard the secondaries (or use them for pilot lights, cooling fans or fine-tuning of the output voltage).
Cheers,
Mark
Looks like a useful transformer, with two separate secondary windings, meaning you could have two outputs that are isolated from the mains and each other. No need for any of this isolation in your case, as already discussed, but still an interesting option for anyone who collects US gear.
In your position, I might be tempted to hang on to this transformer for use as a genuine isolation transformer, and wait for an auto-transformer. These tend to be physically smaller and cheaper than isolation transformers as they need rather less copper. Of course, any mains transformer with dual 120V primaries can be used as an auto-transformer - just disregard the secondaries (or use them for pilot lights, cooling fans or fine-tuning of the output voltage).
Cheers,
Mark
