All transistors are 300V devices.
The example shows 1.44Vp input and gain x101 gives output 291Vpp.
Distortion is THD 0.001%
Do not build this ...! 😀
The example shows 1.44Vp input and gain x101 gives output 291Vpp.
Distortion is THD 0.001%
Do not build this ...! 😀
I would stop at 1000 Volts, it should be enough and I agree Multisim is just magic 🙂
Can I build this on a perfboard? I have a Harbor Freight soldering iron.
This post mentions dangerous practices which should be avoided.
300volt, sweet, i can power it directly of my 240vac mains via a single diode.
Question is, do i make a board or just do a point to point assembly.
Many thanks Lineup
Question is, do i make a board or just do a point to point assembly.
Many thanks Lineup
That’s 340 volts DC. Need the 400 volt versions of the transistors. They exist, sort of. The 400 volt Fairchild complementary TO-126’s went away not too long ago. Not before I bought a bunch of them, though, so I’ve got the VAS covered. Yes, I used them to beta-enhance TIP50/MJE5731A in a +/-165V VAS.
You'll get a 2.5kV OpAmp from APEX - so there is still room for development here...
Before I retired, I designed and built a number of high-voltage amplifiers and opamps, for lab/metrology applications. They have actually been used and are functional. IIRC, they use NPN only in the HV positions.
I'll search my archives, I may still have the schematics somewher
I'll search my archives, I may still have the schematics somewher
This is a simplified version used as high voltage regulator.
200VAC transformer gives 280VDC and regulated 268V output.
200VAC transformer gives 280VDC and regulated 268V output.
This should not even be said as a joke! There may be some people reading who know nothing about the safety rules of the electrical network. I don't think you would want anyone dead from your words. To make it better understandable for those who don't know, no audio device is allowed to be connected to the electrical network directly, i.e. without the mediation of a power transformer.300volt, sweet, i can power it directly of my 240vac mains via a single diode.
Question is, do i make a board or just do a point to point assembly.
Many thanks Lineup
“Your scientist were so preoccupied with whether or not they could, they didn’t stop to think if they should.”
But yeah… It’s kind of scary how many of these you see: “I found this 1000W amplifier pseudo-schematic with pictures of components on some random site and it exploded when I turned it on. What’s wrong? Here’s the picture of the lump of coal that’s left”.
The same applies to the schematics of the amplifier in this thread, for the same reasons you mentioned. If I were a mod, I would delete such thread immediately and post a warning to the OP.
This is no fun and diyaudio goes in dangerous direction.
https://www.emf-portal.org/en/cms/page/home/more/electrical-injuries/limit-values
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Here is a first one, relatively low voltage. The schematic is not user-friendly, since it was for internal use only, not publishing:
This one is more serious, but it is one of the many versions (hopefully the most evolved), and I don't remember all its subtleties:
Yet another one:
This one is the real stuff, but it has only been experimental:
It is just a starter, I have many other iterations, and a number of them have been actually tested, but I don't remember which ones.
I'll try to locate a video/wideband test-amplifier that has actually been used and tested
This one is more serious, but it is one of the many versions (hopefully the most evolved), and I don't remember all its subtleties:
Yet another one:
This one is the real stuff, but it has only been experimental:
It is just a starter, I have many other iterations, and a number of them have been actually tested, but I don't remember which ones.
I'll try to locate a video/wideband test-amplifier that has actually been used and tested
That is extremely dangerous, always use an isolation transformer.
Even with a transformer, any voltage over 50V is considered very dangerous.
Some posts deleted.