Hi,
I'm building an octopus curve tracer and am looking at on-line sources for a power transformer. I'd like to get one with multiple voltage choices: 24, 12, 6 or so would be good.
I'm having trouble interpreting transformer specifications. When a manufacturer, such as Hammond, says that a transformer is 24V CT, does that mean that it has 24V with a 12V center tap? Or, that it is 48V with a 24V center tap? Nowhere do they make this clear, so they must assume it's common knowledge. Which I don't have.
Also, I'm having trouble finding a transformer with multiple taps on the secondary. Hammond has single center tap models and dual secondaries, but it looks like the voltages of the dual secondaries tend to be the same as the center taps, so they do me no good. Any suggestions of where to look for what I'm after?
Finally, is it wise to fuse this on the mains side? If so, what size/type fuse should I use? My circuit will draw no more than 0.25A on the 24V secondary, so that would be 1.25A on the primary. What value fuse would be appropriate? Should I use slow or fast blow in this situation?
Thanks!
- Ken