We always seem to be waiting for the next best thing. Some technologies are a wide open road of possibilites, like computer technology, genetics, aerospace and women's swimwear. How far can analog amplification go?
There are only so many types of amplifier output classes. There are only a handful of voltage and current amplifiers. What about amplification devices? Can science improve on MosFets, Tubes, Bi-Polar? Is there something out there waiting to be discovered? Is there a ceiling to where no more improvements can be made?
Do you see an end of the line for analog amplification?
There are only so many types of amplifier output classes. There are only a handful of voltage and current amplifiers. What about amplification devices? Can science improve on MosFets, Tubes, Bi-Polar? Is there something out there waiting to be discovered? Is there a ceiling to where no more improvements can be made?
Do you see an end of the line for analog amplification?
Indeed, are there or will there be other devices that can amplify our voltages and currents. I wonder for a long time and also planned to ask a similar question to the scientists over here.vdi_nenna said:What about amplification devices? Can science improve on MosFets, Tubes, Bi-Polar? Is there something out there waiting to be discovered?
Time will tell..
/Hugo
Re: Re: How Far Can We Take this?
yes, ferromagnetic semiconductors, like the spin valve transistor.
but that'll take some time before we can use them, IF they are usefull in audio circuits...
Netlist said:
Indeed, are there or will there be other devices that can amplify our voltages and currents. I wonder for a long time and also planned to ask a similar question to the scientists over here.
Time will tell..
/Hugo
yes, ferromagnetic semiconductors, like the spin valve transistor.
but that'll take some time before we can use them, IF they are usefull in audio circuits...
I remember reading an article, perhaps in Scientific American?, about a new device that works like a tube, but is solid state. I seem to recall microscopic cones that emit the electrons across a vacuum. No filament. I've forgotten how they managed the control element.
No doubt about it. Some clever young lad (or lass) will come up with something new. It's only a matter of time.
Grey
No doubt about it. Some clever young lad (or lass) will come up with something new. It's only a matter of time.
Grey
New topologies will pop up at intervals. Quite possibly in response to new devices. Tubes are all "N" devices. The addition of P devices when transistors came along gave rise to other possibilities, although I think it was foolish to immediately dump all the tube topologies...here we are, fifty years later, reinventing the wheel. The tube guys had solutions to some of these things ages ago.
Although, Nelson's Aleph current source isn't immediately obvious, I'm surprised that no one did X or cascoded output stages earlier.
Grey
Although, Nelson's Aleph current source isn't immediately obvious, I'm surprised that no one did X or cascoded output stages earlier.
Grey
Is the cascode a Pass Labs patend?GRollins said:New topologies will pop up at intervals. Quite possibly in response to new devices. Tubes are all "N" devices. The addition of P devices when transistors came along gave rise to other possibilities, although I think it was foolish to immediately dump all the tube topologies...here we are, fifty years later, reinventing the wheel. The tube guys had solutions to some of these things ages ago.
Although, Nelson's Aleph current source isn't immediately obvious, I'm surprised that no one did X or cascoded output stages earlier.
Grey
Re: Re: Re: How Far Can We Take this?
Any articles, pictures, whathever more info about those devices?
/Hugo
Hanzwillem said:
yes, ferromagnetic semiconductors, like the spin valve transistor.
paulb said:Here on Tralfamador, we have perfect amplification devices.
Any articles, pictures, whathever more info about those devices?
/Hugo
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