DIY progress report

[Nelson Pass]

I have an article in preparation. It will not be the B5, as the
moment I publish an "official" schematic the rip off artists jump
to the task.

 

[flg]

"#$%^&*"

 

[EUVL]

Choky already told you how to do this. It cannot be simpler.

Else you can also go through the active filter pages of Linkwitz, and replace all the opamp untiy gain buffers in the Sallen Keys with JFET (B1) :

Active Filters

Even balanced versions are easy enough.


Patrick

 

[Nelson Pass]

"#$%^&*"

You're just looking at this the wrong way. You will get
what your heart desires and you will have participated
in creating it.

And the rip-offs can go suck eggs.

 

[jacco vermeulen]

And the rip-offs can go suck eggs.

That's the spirit.

 

[Vix]

Nelson, thank you very much. I am really thankful and I even like the fact that you're not publishing complete "official" schematics, because we've all seen what happened in the past. Luckily, by now we have learned to "connect the dots", so even if something we come up with is not the same as original, it's fairly close. One that understands the operation of basic buffer blocks, Sallen-key topology, and a bit of Open baffle/fullrange nature may not find it difficult to assemble B5-like circuit. So, it's a learning experience, and and I'm also thankful to Mr. Linkwitz for such nice explanations about Open baffles on his website.

Regards,
Vix

 

[Itsmee]

Active Filters

The link doesn't work

 

[Zen Mod]

try other browser

it works for me with FF

or go to LL site , scroll to projects , click on active filters

 

[EUVL]

Works for me, both in FF & IE.

Patrick

 

[Vix]

There's something strange with Linkwitz lab webpage. I can access it from my office, but not from home. At work they use Windows XP ( I use Firefox browser). At home I use Linux with Firefox browser, and it is "loading..."

 

[Itsmee]

I still can't access the site, even going directly, no matter which browser I use (Opera, Firefox, Safari or IE), even with the firewall and proxy off.

However, I did find the 'Elliott Sound Products' project 09 and 81 useful, especially the calculator tool.

As ZM said....

just search for "cottage" files in Pass Labs

replace active stage with Jfet buffer and voilla

All I have to do now is to work out the best crossover point for my Apogee Stages, anyone had any experience with these?

 

[EUVL]

Send me a email via the forum.
I'll send you a copy of the Linkwitz page.


Patrick

 

[Itsmee]

Send me a email via the forum.
I'll send you a copy of the Linkwitz page.


Patrick

Done, thank you Patrick.

Alan.

 

[Nelson Pass]

Keep in mind that what Seigfried and I are doing are different
approaches aiming at similar results. He is more precise and
analytical. Me, I throw lots of stuff against the wall to see
what sticks.

 

[Gyuri]

Tell me Papa, you're listening to Wagner?

Wacky

 

[c2cthomas]

Keep in mind that what Seigfried and I are doing are different
approaches aiming at similar results. He is more precise and
analytical. Me, I throw lots of stuff against the wall to see
what sticks.

Ahhhh - still humble and practical I see.

 

[Nelson Pass]

Tell me Papa, you're listening to Wagner?

Spinal Tap.

 

[dave_gerecke]

Spinal Tap.

"But it goes to eleven!?"

 

[EUVL]

> Keep in mind that what Seigfried and I are doing are different ..

You meant Siegfried .... ?


Patrick

 

[Gyuri]

> Keep in mind that what Seigfried and I are doing are different ..

You meant Siegfried .... ?


Patrick

Tell me Papa, you're listening to Wagner?

Wacky

Actually, that's why I asked this.
In fact I rarely listen to Wagner.
Onto my brother's largest grief. But to the music listening I like drinking beer. But I cannot be sitting in one place until so much time if I drink beer, that listen to Wagner necessary. Vainly, the age.

Papa has deficiencies as well.
Nobody may be perfect.