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Power Transformer Design Worksheet
A simple, small, stand-alone sheet that will let you design a power transformer with up to three secondaries.
The TDW was put together using information culled from old radio texts and internet searches. I have not acually built any trannies with it, so use it at your own risk.
Plate dissipation calculator
A small ( 95k ) program that I whipped together with VB. Inspired by Duncan's anode calculator spreadsheet
Output transformer design Spreadsheet (Excel)
A very basic spreadsheet that allows you to plug in tranny parameters to come up with your own design.
Untested, the calculations are based on information gleaned from a website or two. As I am no transformer design expert, I cannot vouch for the accuracy of this spreadsheet, but its cool to use to see the relationships involved in tranny design.