DRD calculator

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hi all

when i was approaching the drd design, it just drove me nuts figuring out the resistor values. especially i'm a tube newbie. learning all the jargons of the tube world is staggering.

but thanks to the knowledge in this forum, and pointers from others, i think i more or less understand it now.

thus, i've put together an excel spreadsheet that will calculate resistor values and B+ for DRD design that appeared in VTV.

there is another sheet on the excel that calculates HD2%, HD3% and HD4% given inputs such from a loadline graph. (graph has to be drawn yourself though).

just wanted to share it with others.

cheers
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let me try again...

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the current flow is wrong in the previous calculator.
the one here should give the correct values, after clarifying at this thread (thanks guys)

also included is a field that takes OPT resistance as input. this is to cater for voltage drop across the OPT as pointed out by Jim D at AA.

cheers
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