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My project to add 3 one-stages channels to Super Melquiades look like progressing (it means I will have the new 15,5:1output transformers very soon) and in  context of upcoming changes and, after long consideration and  some tests, I desired to  combine the addition of the one-stages with some other modifications. Here is the list of the changes the Super Melquiades will endure (besides adding 3 more channels that itself is a major invasion):

1) Elimination the current filament 6.3V/12.6 transformer and replacing it with   new 12.6V/15A toroidal transformer. All 9 Super Milq’s 6.3V tubes will be paired and driven by 12.6. (Do you know who makes standard serial 6.3-0-6.3 toroidal for 12-15A in order avoid going custom?)

2) Dropping the plate current of the out stage from 220V to 190-200V. The new plate transformer will be introduced: 220V/3A. Since, the HF channels will not be driven by 6C33C anymore I do see a rational to drop voltage and increase current on the 6C33C’s plate.

3) A new fan will be added to cool down the cluster of the very narrow positioned six 6E5P/6E6P tubes.

4) The peripheral wholes around the 4 large B+ capacitors will be sealed, converting the internals of the Super Milq into air-taught with objectives to navigate the air flow from of the Super Milq’s main fan more prissily.

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