F5 power amplifier

[Jaac]

F4 are going in the fridge, lets wait for the F5. Where will this end ? on my apple keyboard there are 16 "F" keys.
How large must i cut the heat sinks ?

 

[Zen Mod]

........
How large must i cut the heat sinks ?

it will be small , anyway ........

 

[Vix]

As Papa said: "There is no heatsink that is too big..."

 

[jupiterjune]

So what type of power supply do we need here?

Do we need the ZV5 type PS, or will an Aleph type PS work?

I have to say, I re-upped my AudioXpress subscription when I heard about the F5. But now I am at ad hoc base camp USA, and the May issue is unavailable to me....

JJ

 

[Babowana]

Do we need the ZV5 type PS, or will an Aleph type PS work?

In my opinion, it should be ZV5 type as the MOSFET Sources are facing the supply rails.

 

[Babowana]

... the actual circuit has temperature compensation for DC stability ...

Is it "active" circuit?

Thanks,

JH

 

[apassgear]

Re: May Audio Xpress just arrived!

I turn to page 8, and there is:

"The F5 Power Amplifier

This minimalist amp design is so simple, well, even a caveman can do it."

Well, OK... but can I?

Thanks, NP.

Ren

Gime a scan and I'll tell you

I might even do the art work for a board

 

[GRollins]

Cro Magnon supplanted Neanderthal roughly ten to fifteen thousand years ago. If you ask someone to define 'caveman' they will generally give you a pretty accurate portrayal of a Neanderthal. Somehow, in their view, Cro Magnon managed to skip all that uncomfortable cave-dwelling stuff and moved directly into sky scrapers. (Where the Cro Magons lived while they were building that first generation of sky scrapers, deponent sayeth not.)
We are Cro Magnon, and yea verily we are cavemen. We just happen to wear cotton and synthetics instead of animal skins. (Okay, maybe you're wearing leather shoes...work with me, here, okay?)
To the extent that you're a bona fide caveman, I hereby pronounce you capable of building the circuit. You're not just a caveman...you're an advanced caveman.
Just be glad you're not having to solder using a burning stick fresh from the campfire. After all, we have made a little progress.

Grey

 

[Nelson Pass]

Probably even Geico customers could build one.

 

[GRollins]

Egad, those guys even drink wine!
If that's not a sure sign of progress, I don't know what is.

Grey

 

[EUVL]

Nelson,

Since the issue is alreay out, would you perhaps publish the full schematics here as well ?


Patrick

 

[Babowana]

so - I'm expecting - what else -any kind soul having these few pages -willing to scan and send to >choky@neobee.net<





Papa ?

you know that I'll not build it

Oh, well . . . then which soul will like to send you the copy . . . ?

 

[despotic931]

Geez, I'm all new to this, spend all my free time reading about the F4, and now here is the F5! Which is the easiest "F" for someone who is just a beginner to build?

 

[Babowana]

Geez, I'm all new to this, spend all my free time reading about the F4, and now here is the F5! Which is the easiest "F" for someone who is just a beginner to build?

I will build F4 in the F4 thread while will build F5 here.
I believe these two have almost the same complexity of the construction to the beginners, but with the different results: F4 0dB gain, F5 15.2(?)dB gain.

O, I didn't build F5 yet. But, my estimation of the complexity of
F5 is possible based on the similar project I have built . . .

 

[Zen Mod]

kind soul felt sorry to poor serbie , and sent me scan of article .....

nice little amp ;

in fact - boiled water ...... but with touch of divine

once more from Papa - beauty is in details


greedy boyz - feel scare!

Papa have more amps in his head than joints .....

edit:

and - yes - I'll not build it ........

 

[Vix]

greedy boyz - feel scare!

I want some, I want some...

 

[Babowana]

sent me scan of article .....

Okay, then copy me one, thanks . . .

 

[Babowana]

You are the thunder!!!!!!



Many thanks . . .
I will wait for few months until back-to-home and try this . . .

 

[Babowana]

Briefly read through . . .
Papa concludes at the end: "It sounds great."
Yes, mine, very similar one (of Papa's), sounds really excellent for me.

Be doing well, Papa.



JH

 

[Zen Mod]

possible dumb question ( ok - like majority of my questions ) :

is there any way of subscription to AX , to get it in pdf , ie. not waiting for overseas gamble trip?

I'll ask them too , but maybe someone here knows ......... ?