fpitas
Master Contributor
If you have to work in a noisy environment, a factory (or in battle lol), the current mode is superior. Not sure what he had in mind.Are there any benefits or is just some of it's mad stuff?
If you have to work in a noisy environment, a factory (or in battle lol), the current mode is superior. Not sure what he had in mind.Are there any benefits or is just some of it's mad stuff?
Depends how thick you make the wire - or how cold you get itWhat I was getting at was that the wire resistance in an inductor makes it lossier than the leakage resistance in a cap.
Sounds like the ol' "doorknob capacitors"(?).TV's of old all had those HV caps in conjuction with diodes in the flyback circuit.
I still have a bunch of them in a box.
About 11nF and a few kV rated I vaguely remember.
The CRT color TVs of the 1950s and 60s had anode voltages of ca. 25 kV.The later big screen TVs made it up to 25kV or so, although the capacitor was the final anode metallization inside the CRT.
very low current, though. Not vanishingly low, though.I have been told that the 25kV really really hurts.
Yes, to my knowledge the people I talked to were still alive. Or, so they claimed...very low current, though.
My father got shocked regularly working on TVs. My recollection of these events (when it happened in his shop) was that he'd typically be jumpering across suspect electrolytics with a test capacitor, and he'd accidentally brush across a hot, uninsulated wire or connection. Invariably he'd call the TV a remarkably insensitive name (not profanity -- worse, in the 1960s when certain terms were much more commonly used than today) and yank his arm out very quickly. The damage he would suffer, invariably, was a scratch, cut, or gash on the arm caused by some sharp bit of chassis or cabinet.Yes, to my knowledge the people I talked to were still alive. Or, so they claimed...
Been there. Done that. The parents were so glad when I tossed my tubes and went to transistors.The damage he would suffer, invariably, was a scratch, cut, or gash the arm caused by some sharp bit of chassis or cabinet.
All those hot tubes so close together; so little ventilation for the poor unfortunates in the middle.Plenty of impracticality in "high end" audio, though.
View attachment 331282
From the guy who proved (or at least demonstrated) that he could make a ss amplifier sound like a tube amplifier.
So... there you go, then!
PS Note that the monstrous monoblocks above are not OTL amplfiers! We'll give Atma-Sphere and @ralph a pass because it takes a fair number of output tubes in series-parallel not to use some inductors (ahem, transformers) 'twixt power tubes and loudspeakers.![]()
Right? Tubes need ventilation. A lot of "high-end" designs seem to skimp.All those hot tubes so close together; so little ventilation for the poor unfortunates in the middle.
They should outlaw inductors, the cruel things. They mistreat electricity! They make it go 'round and 'round so many times that it gets so dizzy that it can't even keep its voltage and current in step anymore--a terrible way to treat electricity, I say.I have an audio friend who is a huge fan of the use of inductors in audio circuits, saying their energy storage is key to better sound quality…he seems to hint at extra dynamics and less noise.
Does anyone here, who reads subjective audio forums widely, understand what the in-principle argument is, how this is meant to be an advantage?
He prefers choke power supplies for single ended valve amps. Now that one I can understand may be a benefit, effectively being a choke load on the anode and delaying the point at which the output would clip as signal rises.
But he takes it further.
He uses transformer volume controls, saying they sound better than passive resistor volume controls because of the way inductors store energy.
He is building passive loudspeaker crossovers that are inductor-intensive and capacitor-light.
He has in mind an RIAA circuit that “is entirely inductor based”… not sure if that means no capacitors, or also minimal resistors. He showed me a test inductor that he is winding with what looks like a ferrite drum sleeve.
At every opportunity where he could replace a resistor or a capacitor with an inductor (I don’t mean to literally substitute: I mean with a different circuit that still serves the intended function), he is looking for ways to do it.
Is this a bogus argument from an electrical engineering perspective? Why? What is the correct argument?
Thanks for any thoughts.
That's why they're phasing them outcan't even keep its voltage and current in step anymore
They should outlaw inductors, the cruel things. They mistreat electricity! They make it go 'round and 'round so many times that it gets so dizzy that it can't even keep its voltage and current in step anymore--a terrible way to treat electricity, I say.
OH, MAN! This is so funny, it Hertz!That's why they're phasing them out![]()
Don't get too wound upOH, MAN! This is so funny, it Hertz!
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Energy stored dosnt sound like anything. Its the release/transfer of energy that makes sound. Illd love to see his inductor based linear power supply.
Probably like this:
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Help jog my memory, someone. What is the mechanism by which the OPT of a valve amp is said to increase the headroom of said amp compared to a direct-output amp? Does it apply to RMS or only to transient peaks?No thats a transformer and a cap, the cap is storing the energy, does that work/
If you run it with no load, you can get some exciting voltages.Help jog my memory, someone. What is the mechanism by which the OPT of a valve amp is said to increase the headroom of said amp compared to a direct-output amp? Does it apply to RMS or only to transient peaks?
Badoom - and indeed - tish.That's why they're phasing them out![]()
Badoom - and indeed - tish.
Valve amps typical put out high voltage and low current, so the load needs to be high impedance, while speakers need low voltage and high current, so there low impedance. The output transformer converts the first to the second. It transforms the low impedance to high.Help jog my memory, someone. What is the mechanism by which the OPT of a valve amp is said to increase the headroom of said amp compared to a direct-output amp? Does it apply to RMS or only to transient peaks?