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In Reply to: RE: b+ fuses posted by altecboy on February 25, 2017 at 03:27:03
That will mess-up the sound on ALTECs, on a continuous basis. How often is it, that outputs fail?
What is your operating point and tube type?? I run my outputs at high VDC P-K and low current, such that it is dissipating only about 55 to 62 percent of rated maximum dissipation. I use good output tubes...NOT Chinese made crap which is false economy.
I am sure some engineer will give you a fuse type, but is that a smart thing to do, sonically ?? I think not. Re-think that whole topic !!
Jeff Medwin
Follow Ups:
I kinda agree with Jeff here. A fuse should not be used as a safety net for a poorly implemented design. Staying well within the operating parameters of the component parts, good layout, using quality parts, making sure to avoid instabilities, and utilizing a sound idle bias scheme should yield a long lasting stable unit. Of course, much depends on the reliability of those tubes.
This is just my opinion. But, IME... some of the longest lasting amps have simple layouts. And a single fuse on the outlet side of the PT.
Hi FL, what do you mean by "And a single fuse on the outlet side of the PT. "?
I THINK he meant to say " A single fuse on the Primary side of the Power transformer ".
Jeff Medwin
ARE YOU SURE!
Outlet = wall outlet or primary side.
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