Quote:
Originally Posted by Coppy
I'm now remembering that the LP275 trannies have to be bigger as they have to service twice as many output tubes. Each output tube needs it's own winding for input, thus twice as many input windings for the LP275 as the LP140. I assume the output windings must be larger to accept the signal from more on the input side. These big transformers where there are eight output tubes are complex beasts.
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The schematics do not show the LP275M output transformers having any more input windings than the LP140M output transformers. Each output tube does not need its own winding for input, as there is some paralleling of tubes involved. The schematics do show different model numbers for the transformers however. It does make sense that the LP275M output transformers would be larger than in the LP140M in order to handle the extra capacity.