while i like data as much as the next guy (probably more) i am no longer equipped to collect that kind of information at a peer-reviewable level.
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in historical parlance a "harder" tube is one with a more perfect vacuum (they literally pulled a harder vacuum before sealing the envelope). this...
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100% this!
if you put a scope on your signal it's pretty obvious how massive the peak to average ratio of distorted tones are. those sharp spikey...
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keep in mind current day tubes rarely have the QC of the golden age, where g2 wires would be precisely aligned to the g1 "shadow." obviously this...
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having recently picked up a 5150 III 100S ("stealth" modded), i might be able to chime in here.
indeed this amp has a superfluous amount...
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i tip my hat to you, sir. you were one of the good ones!
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of course, that depends on what you consider "useful current," and what tube you're using.
there is absolutely nothing stopping you...
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thermionic current flows whenever there is an electric field gradient, even infinitesimally small.
they do NOT experience any bandgap thresh...
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gui, first question is: musical instrument amp, or hifi amp?
that will guide your design goals/criteria.
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ironically, thermionic (tube) diodes have zero forward voltage drop.
however, they do have internal resistance, so that never manifests with...
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i've used an on-off-on switch to toggle between triode and UL mode for 20+ years in the BAGA.
i don't linger in the middle position, but have...
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a thought: what's the tolerance on those 1r cathode sense resistors?
when dealing with such low resistances a little bit of drift can make a...
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i had an ampeg v4 recently. one gassy tube brought down the crappy high z cap divider bias supply by pulling all the electrons out of it. the rest of the...
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i love my rokus.
steve, look into the plex app. very well sorted considering it's free. you run a server on your PC, point it to some media...
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this is an important note.
hot tubes outgas, and gas in the envelope will induce grid ionization current, making the grids go more +ve. runaway...
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hey, a single bare wire has inductance too, you know.
that's why my amps don't have any wires in them. construction is a bitch, i have to admit....
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technically, if we're speaking about "unavoidable" noise generated in the tube itself, mu has nothing to do with it: it's all about gm....
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