Hello to all.
I'd like to find the scheme of a tube amplifier, perhaps not too complex, to be connected directly to an electrostatic cell. Just like in the Acoustat X.
Do any of you give anything like that?
Thank you all.
I'd like to find the scheme of a tube amplifier, perhaps not too complex, to be connected directly to an electrostatic cell. Just like in the Acoustat X.
Do any of you give anything like that?
Thank you all.
Cool project. What panels do you plan to drive? Larger panels and/or smaller spacings mean more parasitic capacitance to charge and discharge, so more current from the amplifier. I/C is a figure of merit here, just like the original meaning of slew rate.
If your project is going to extend down into the lower midrange of frequencies, excursion is only linear if the diaphragm is constant charged and driven push-pull, so your amplifier is easiest with push-pull output. Depending on diaphragm-stator spacing you might want several hundreds to several thousand Volts swing available. No generic answer is possible.
This is a potentially very dangerous project, so you might reassure us that we're not aiding your death. Or much worse, someone else's.
Be safe, and all good fortune,
Chris
If your project is going to extend down into the lower midrange of frequencies, excursion is only linear if the diaphragm is constant charged and driven push-pull, so your amplifier is easiest with push-pull output. Depending on diaphragm-stator spacing you might want several hundreds to several thousand Volts swing available. No generic answer is possible.
This is a potentially very dangerous project, so you might reassure us that we're not aiding your death. Or much worse, someone else's.
Be safe, and all good fortune,
Chris
Hi Chris.
Thanks for your answer.
The panel I'm building is similar to the Acoustat one (60cm X 20cm) but it will work above 200 Hz (I hope!) So I think the capacitive load is relatively low. I have seen that it is possible using the inverted stator configuration, to mount a single ended.
Thanks for your answer.
The panel I'm building is similar to the Acoustat one (60cm X 20cm) but it will work above 200 Hz (I hope!) So I think the capacitive load is relatively low. I have seen that it is possible using the inverted stator configuration, to mount a single ended.
Not sure if this is helpful, but Patrick Turner has quite a lot to say about how to drive Quad ESL panels, and how that impacts the design of the amplifier ...
Quad II and ESL
Quad II and ESL
I asked the expert about that, - it's all been tried and doesn't work.
Massive matching problems quite apart from the extremely obvious.
Massive matching problems quite apart from the extremely obvious.