Electronic – Do small 1:1 isolation transformers exist

isolationnixietransformer

I am building a Nixie clock that will be powered from 110V wall power. The design is based around having this 110Vac as the input voltage, but I wanted to put an isolation transformer inline for safety.

This thing will maybe go up to 10W, so I don't need a huge high power transformer. But I cannot find a 1:1 small transformer. Are these not a thing? Am I looking in the wrong place? Or do I need to redesign my circuit to use a different input voltage?

Best Answer

If you're scavenging parts, you could consider using two similar transformers such as 120:12 and then 12:120.

Or follow the suggestion of The Photon and search for a new in-stock part- there's a 12VA "Signal" (the manufacturer) part for about USD 11. in one-off. It has a nice split-bobbin construction.