It has nothing to do with a special type.
You can build a simple PL82 amp that looked like a Mercedes and sounds like that. And a 300B amp can be build tiny, and thats what happens with all those cheap asia set or kit amps. But for people who have the goal to once in their life owning such an amp for low money, its an opportunity.
But the result has nothing in common what can be achieved with such an amp.
@ Schmitz77,
Well, Thorsten showed something, be it good or not.
You prefer to do not, for your own narrow minded reasons.
Actually, I don't see anything positive in what you are contributing here.
It's only criticism, stuffed with blanket statements.
What are you doing here in the first place??
Well, Thorsten showed something, be it good or not.
You prefer to do not, for your own narrow minded reasons.
Actually, I don't see anything positive in what you are contributing here.
It's only criticism, stuffed with blanket statements.
What are you doing here in the first place??
thorsten not only here and on audioasylum helped a lot the DIYaudo comunity.....he have ifi audio and AM-777 SE Amplifier by AMR Audio ....is the ones on OB speakers too
@daanve nice post ! just ignore that people
@daanve nice post ! just ignore that people
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If you think its "narrow minded" not to give own intelectual property for free to professionals, well, thats just your opinion, man.
Thorsten showed something to gain fame in the community. Thats an ego number, and often its been combined with a business modell.
I'm the complete opposite. No need for fame, no need for compensation, no need for a business model. And thats what you don't like. But thats fine with me.😉
Thorsten showed something to gain fame in the community. Thats an ego number, and often its been combined with a business modell.
I'm the complete opposite. No need for fame, no need for compensation, no need for a business model. And thats what you don't like. But thats fine with me.😉
Interesting. As usual, like Zieten came from behind the bush, quickly comes a Thorsten- fanboy out of the shade and send his cheers.😀 Just to give a hint to a commercial company.
Thorsten was (is) one of the cleverest, funniest, most generous characters I ever met. He was always helping people for nothing - giving parts away, writing endless schematics on pieces of paper in pub meets, entertaining us all with his stories. Yes - he started out in a small house in North London stuffed full of audio gear when he worked for a hospital there, and there was hardly room to sit down. But through hard work and vision he made a good career in the audio industry. Good luck to him wherever he is. A wonderful, unforgettable person who made everyone's life richer.
Thank you, Andyjevans.
Thats what I wanted to know. He made a carreer in the audio industry and now is so short of time that he can no longer help the community.
Exactly what I thougt, nobody does anything without a return in his mind. He used his fame and standing in the community to gain money out of it, and after that, he dissappeared into nowhere land. Because of no time, no need for posting etc.
He just had used other people to make a career. Nothing wrong about it, but its not the samariter- jesus like role model some want him to be. Just the opposite.
Thats what I wanted to know. He made a carreer in the audio industry and now is so short of time that he can no longer help the community.
Exactly what I thougt, nobody does anything without a return in his mind. He used his fame and standing in the community to gain money out of it, and after that, he dissappeared into nowhere land. Because of no time, no need for posting etc.
He just had used other people to make a career. Nothing wrong about it, but its not the samariter- jesus like role model some want him to be. Just the opposite.
@ Schmitz,
Regarding the length and number of your posts here, apparently you are not short in time.
However, there is nothing "helping" or "contributing".
Actually, that's much worse...
Regarding the length and number of your posts here, apparently you are not short in time.
However, there is nothing "helping" or "contributing".
Actually, that's much worse...
I did help people here, but I'm saying what I think, too.
Mostly, I do constructive criticism.
Whats wrong about that?
You need the usual facebook friends to post hymns about what you have done lately?
Well, go to facebook. You will find hundreds of facebook friends there which salute your works and your ego can become bigger and bigger...
I'm free to write what I think about DIY and DIY projects. If I like it, I write it. If not, I write it, too. That seems something which you aren't comfortable with. But has much more to do with you than with me.
And no, as I stated before, there is no one who can limit my time due to jobs and work that has to be done. Big problem for most of the people, too little time and energy for casual activities. And if they managed to get something done, someone like me comes and makes up his mind about it- very dissapointing, I understand.
Mostly, I do constructive criticism.
Whats wrong about that?
You need the usual facebook friends to post hymns about what you have done lately?
Well, go to facebook. You will find hundreds of facebook friends there which salute your works and your ego can become bigger and bigger...
I'm free to write what I think about DIY and DIY projects. If I like it, I write it. If not, I write it, too. That seems something which you aren't comfortable with. But has much more to do with you than with me.
And no, as I stated before, there is no one who can limit my time due to jobs and work that has to be done. Big problem for most of the people, too little time and energy for casual activities. And if they managed to get something done, someone like me comes and makes up his mind about it- very dissapointing, I understand.
Hey OP - please make new thread when you've sorted out your 300B amp. This thread is going up, down, in, out, never getting anywhere. How about getting out of the armchair lab and actually building something so this can end...
LOL dudes got a 300B amp and cant get it working. I've got an 6AS7 SE using cheap Edcor iron and LOVE it!
LOL dudes got a 300B amp and cant get it working. I've got an 6AS7 SE using cheap Edcor iron and LOVE it!
What are you talking about? Who wants threads about 300b amps to end? A lot of us are building them or have built or are thinking of building them. We're just exchanging ideas, and a good number of ideas from skilled and experienced contributors actually do move us forward in our designs.
And what's wrong with a few OT posts? We've all been through over a year of lockdown and it's a relief to many of us to have some audio friends to exchange ideas with, and even make new friends and continue conversations by IM.
Long may 300b threads thrive and blossom! 300b amps are a fascinating challenge, and there are so many different ways to make them work. And once you meet the 300b challenge you have 2a3 and 45 amps in store for you. Whether the OP has built his amp or not, who knows and does it matter?
too much blah blah blah about the tube, but you still need an OPT and psu to make it work and thence connect to the speakers to hear any music......where is the tube again?
the WE tube data for 300b contained all the operating points that can be imagined, just pick one that suits your needs and be done with it....
the WE tube data for 300b contained all the operating points that can be imagined, just pick one that suits your needs and be done with it....
Have you built a 300b amp, Tony? How did you choose your design if you did?
Thanks for reminding us of the WE data, which is indeed useful.
Thanks for reminding us of the WE data, which is indeed useful.
This, Im not immume to this myself and the perpetual lockdowns, curfews and some private things are driving me off the deep end. I can only imagine im not the only one.
After all we are all humans with their flaws, live and let live.
The real guru builders that I know don't have the time to post on forums. They only read.. And perhaps they are on to something as the entire point of forums has become contentious to say the least. Then there is the pecking order of the old guard that has read, seen and tried everything already.
Only a fool deals in absolutes, nothing in this life is absolute or the best. And the entire point of DIY is the chase not the catch. Because if you want something to listen to pass the time you could have very well walked into the thrift store and be done with it.
Just my 2C.
Edit, i found this online combining the search therms Dunning-Kruger and Aristotle. I would normally never even contemplate posting anything of the likes for fear of being called a hypocrite, because i resent Snobs and pretentious folks. Plenty of people here that have some smart sounding quite in their bio and make monkey mistakes in their designs by overlooking datasheet specifications written up by a engineer that spend his life perfecting one single tube.
The More You Know The More You Realize You Don'''t Know | Blog
PS: I personally want to do some tube experimenting boards so you can swap a complete driver assembly in a matter of seconds. If anyone is interested in bankrolling a batch of FR4 to make it work let me know.
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not yet but i have built three 2a3 sets and two used the d3a, and another the 12hl7, all voltage amps in triode mode...a fourth build is using the 5842 in a direct drive mode.....two psu's, a 400vdc and a 140dvc supplies...
what i learned from building 2a3's is that the filament even in ac, hum is very very faint and you have to poke your ears very close....in fact a client claime that when he nulled the hum thru the humdinger pot, the sound lost some dynamics, a little bitt of hum and the dynamics came back....his claim, i have nothing to doubt him...
i have a pair of 300b's and will do a direct drive mode using the 12hl7...
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Never wrote that I'm an electronics guru. Just the opposite is true, I have a humble respect for even tube radio or TV set designers, as I know that this is a hell of a lot more complicated compared for a simple power amp build project.
Andyjevans, go through the WE 300B data sheet with the workpoint table, just pick the right one and finish that damn project.
I did mine some 30 years ago, and it wasn't the best, but good enough to beat some others.
Did go one with other, more interesting tubes. Love pentodes more than triodes sound.
There is not much time to waste in life, because life's much too short for endless projects.
Andyjevans, go through the WE 300B data sheet with the workpoint table, just pick the right one and finish that damn project.
I did mine some 30 years ago, and it wasn't the best, but good enough to beat some others.
Did go one with other, more interesting tubes. Love pentodes more than triodes sound.
There is not much time to waste in life, because life's much too short for endless projects.