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In the Forum: Melquiades Amplifier
In the Thread: Bias help
Post Subject: Thanks.Posted by Romy the Cat on: 5/31/2018
It is very nice and indeed and under normal circumstance you will not need any permanent multimeter. It is for sure nice to have it when you put a new 6C33C in use as plate current run wildly while the new tube is burning in. It is still OK to do it with no multimeter. What I do is what a new 6C33C is in I set the plate current for 100mA and let it to burn for a half day. Then the run out of the current become less and less and I set it to ~150-170mA for a fully heat up tube and run it is it for another few days of listening. After 20-50 hours on the tube I set the full power on it. 
 
I do feel however that multimeter is very useful what you have multiple channels and small kids in house. They tend to turn anything turntable and if I arrange the controls on Milq after I become a dad then I would put controls at very different locations. 
 
Anyhow, it is kind of special pleasure to see the Melquiades built out there. It is not the ego things, just a pleasure. It is 6AM in Boston, the Sexy Amy is sitting in our library, playing with her computer and drinks her morning coffee. I called her and showed to her the picture of your Milq, with Bruckner records on backdrop and my schematics. She was very distinctly purring….

PS: a question. I see that the internal wall of the amp covered with some kind of foil. Was it intestinal? Is it a regular Aluminium foil? Are you planning to do extras shielding by it?

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