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Power XFMR Choice

I specify a 5 amp winding to cover all possibilities with some margin. A SSE with KT88's will draw exactly 3.5 amps if all of the tubes are exactly at spec. An EL34 version will draw 3.3 Amps. The filament current could easily be +/- 10% or so. This could put the current close to 4 amps. A 4 amp winding would work, but 3.5 is rather close. See what Edcor says.