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Ok, the Milq MF DSET is well laid out. I have ordered a few parts and it will be on it’s way. I’m still contemplating what kind 400V cap to put right before the DHT tube in B+. I have space and I might go do film cap but I am not sure. Still that cap is not a design decision but rather juts a decision.

Among the design decisions I have the only one dilemma to resolve. The two-stage Milq will have much more gain then I need for 109dB sensitive S2 diver. So, what I wonder is where to kill the gain. The right place to do it before the driver stage but I have a filter in there and this filter talks with positive bias of all 6 channels - it will be too messy to change it. Also if you look at the channel “E”:

http://www.goodsoundclub.com/PDF/6-Chennal_Melquiades_DSET_Amplifier.pdf

… then you see a filter resistor and bias resistor (was not possible to combined them as I did in other channels). So it have enough impedance on the driver’s grid and I do not want to add more as HF might suffer. What next? To deduce the gain of the driver stage is not good idea, probably it would be OK to burn the gain in coupling? Sounds uncomfortable and unpractical. Probably the ease way would be juts to put a 16R LPAD after the output transformer and deal with it, which bring me to a question: did anyone even ever seen not wire-wound LPAD but 16R stepped attenuators LPAD?  In past I had Taiwanese folks who built for me any crazy custom LPAD but they refused to humiliate themselves with low impedance and those idiotic low values of resistors. At that time I did not offer more money but now I would buy a pair of very high quality 16R, constant impedance, stepped attenuators.

Do anyone know what I might source them?

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