trafoless microphone preamp wish list
- Thread starter bcarso
- Start date
Help Support GroupDIY Audio Forum:
StephenGiles
Well-known member
Very nice indeed, but where is the output? I can see 2 inputs.
Stephen
Stephen
rafafredd
Well-known member
after C4 and C5
A buffer would be nice.
A buffer would be nice.
tk@halmi
Well-known member
J3 and J4 used as source followers ARE buffers.
I see a very fancy LTP. How is it going to be used as a mic preamp?
I see a very fancy LTP. How is it going to be used as a mic preamp?
StephenGiles
Well-known member
[quote author="rafafredd"]after C4 and C5
A buffer would be nice.[/quote]
Thanks, most circuits seem to indicate "output". Also a gin and tonic would be nice!!
Stephen
A buffer would be nice.[/quote]
Thanks, most circuits seem to indicate "output". Also a gin and tonic would be nice!!
Stephen
rafafredd
Well-known member
Yes, I know, but what are the lowest possible impedance those small fets would be able to drive? Maybe enought for most modern inputs, but I wouldn´t try to load this preamp with one of the old tube varimu compressors or LA2A, 1176, or any other 600ohms transformer coupled vintage gear most people praise in this forum. I always think about low output impedance as an important feature in a mic preamp, because most of the time, it will be going directly to a compressor before tracking.
The output buffers could be moded for a stronger drive.
Winston OBoogie
Well-known member
...
With all the requirements and specifications and expectations, this project will never get done. Thanks to this forum I have realized just how ridiculous people can get. I myself have been slacking off a lot because of this DIY crazy madness.
tk@halmi
Well-known member
[quote author="analag"]With all the requirements and specifications and expectations, this project will never get done. Thanks to this forum I have realized just how ridiculous people can get. I myself have been slacking off a lot because of this DIY crazy madness.[/quote]
LOL. Welcome to the FORUM.
LOL. Welcome to the FORUM.
Winston OBoogie
Well-known member
...
Have you ever seen some people who are on medication...they take a pill for a back pain, and a pill to offset the side effect from the pill they took for the back pain and a pill to offset the side effect from the pill they took for the pill they took to offset the effect from the pill they took....well such is Solid State electronics if you're not careful.
Analag
Analag
tk@halmi
Well-known member
I don't think it is about knowing too much or too little. It is about motivation and interest. Some like to listen in and learn something, or just want to sit by to entertain their minds.
You have the motivation so you do it. You are the man! :grin:
Cheers,
Tamas
You have the motivation so you do it. You are the man! :grin:
Cheers,
Tamas
bcarso
Well-known member
Just a quick comment: this thread started out as a survey to find out what people wanted in a mic pre. It did not have the title Brad's Ultimate Mic Pre, or The Great Forum Mic Pre.
That it has generated this much interest, and stimulated a lot of thought and even some design and breadboarding, is great and should be encouraged.
And I am still interested in coming up with a design that will incorporate at least most of the requests, especially those of Stamler. Those also happen to be the most stringent. As well I have my own favorite circuit parameters to optimize, some of which have been alluded to in other threads, for example attention to thermals and voltage-dependent capacitance effects.
That it has generated this much interest, and stimulated a lot of thought and even some design and breadboarding, is great and should be encouraged.
And I am still interested in coming up with a design that will incorporate at least most of the requests, especially those of Stamler. Those also happen to be the most stringent. As well I have my own favorite circuit parameters to optimize, some of which have been alluded to in other threads, for example attention to thermals and voltage-dependent capacitance effects.
chrissugar
Well-known member
Great thread, :thumb:
Just want to say thank you to all you smart people.
chrissugar
Just want to say thank you to all you smart people.
chrissugar
G
Guest
Guest
[quote author="analag"]
[/quote]
What? S M A R T people???
Is it PREAMP? seems to be kind of ultralinear
line amp.
where I was five years old, I had drawn similar schematics.
Yes, without optimality and without sense, but I loved to draw.
like a child. Really.
Now, I am engineer. And I know, that somewhere optimality
is not in the linearity and topology depends on purpose.
And to draw pictures with transistors only because they are nice ????
Yes, it can be modern kind of art, some electronic schematic abstract
draw. Paint it in the oil to the canvas 2 X 2 meters.
you will have a success, maybe after your death...
xvlk
[/quote]
What? S M A R T people???
Is it PREAMP? seems to be kind of ultralinear
line amp.
where I was five years old, I had drawn similar schematics.
Yes, without optimality and without sense, but I loved to draw.
like a child. Really.
Now, I am engineer. And I know, that somewhere optimality
is not in the linearity and topology depends on purpose.
And to draw pictures with transistors only because they are nice ????
Yes, it can be modern kind of art, some electronic schematic abstract
draw. Paint it in the oil to the canvas 2 X 2 meters.
you will have a success, maybe after your death...
xvlk
Svart
Well-known member
poetry.. :shock:
tk@halmi
Well-known member
Heh. You can interpret Chris' post as a tounge-in-cheek comment as much as an expression of gratitude. If you could look into his eyes you could tell, but this is just the internet. :wink:
