A perplexing puzzle: National NC-183D power transformer

[Electronic M]

Originally Posted by Kamakiri

It's enough of a stretch for me to do this as it is, let alone trying to figger out how to add that in place

Only need 2 resistors (and maybe a cap for whichever side input or output don't have one) to make one of those regulators tick...Wikipedia has a great wiki on designing circuits for them (and some of the datasheets have even more design templates)...You can pick them up at any radio shack (if you can find one), or many of the online parts houses we get our caps from. A few minutes of napkin math is all that is needed to set one of those regulators up....
Or alternately the lazy man's approach to setting up one of those regs: use a pot in place of the two resistors, set it for max output voltage, hook it to the circuit with a ~100K ohm dummy load and cap on the output, meter the output and adjust the knob till you have what you want....So easy a grade-schooler could do it.

If you unlock the mysteries of these regulator chips and have usable scrap power transformers and passive components around you can make virtually any power supply you want, and as many as you want...