Sourcing DIP Transformer replacements

On 2013 May 27, at 2:00 PM, Dave wrote: They were used extensively in the address decoders and drivers and inhibit drivers, even or more so in later systems. To my observation, early systems may use them in the sense amps, later systems avoided them there in favor of all-IC sense amps. In address decoders they simplified the circuitry by sitting at the intersections of decoding matrices, in drivers they were a simple solution for isolation and level-shifting. I don't know that there was anything special about them, other than finding a particular match. The junked board I was looking at has 3-4 different types. Looking at Digikey there are far more types still being made today than I was aware of, so maybe there's a fair chance of finding modern matches.