The Pass Monster?

[Nelson Pass]

Re: A farad or Two

In the previous example 11 times this amount is needed to obtain 14112 Joules.

Crimestopper's Textbook:

The 11 times comes from the 168 volts versus 50 volts, as
this is a square function of voltage.

 

[jacco vermeulen]

but what a caps !!!!! they are big !!! where did you buy them ??

Computer guy, this one was not a car mechanic.
He told me their system had higher surge values than the caps can handle.
They are brandnew, i bought a couple of boxes for $ 8 the piece.
Thats my son's toy, mine is on the driveway.
He broke off the wing, dad needs to fix,i hate people who wreck italian cars.

 

[Jaac]

With those caps you can build yourself a nice cheap monster. or do you have other plans with them.
a only wondering why they are so big i have panasonic caps 47000uF 50 volt but they are 90 X 50 [mm]

i hate people who wreck italian cars.

i can agree with that

 

[Zero Cool]

The cans were using for the PASS MONSTER are HUGE 9" long by 3" in diameter!!!! and were going to be using something like 40 of them per chassis according to N.P.!!!!!

Zero

 

[Nelson Pass]

I think we'll need to split each channel into 3 chassis -
2 supply chassis each holding a transformer and about
1/3 of the cans, and a main chassis also holding about 1/3
the cans and the main circuit. This way 1 ruffian should
be capable of actually moving the amplifier.

 

[jacco vermeulen]

I think we'll need to split each channel into 3 chassis

What a catalyst a capacitor can be .

After reading up on the design statements i wonder what the thermal demands and setup for the heatsinks will be like ?


just a quote:

"After all this talk I expect real temples for such a design."

 

[Zero Cool]

I think we'll need to split each channel into 3 chassis -
2 supply chassis each holding a transformer and about
1/3 of the cans, and a main chassis also holding about 1/3
the cans and the main circuit. This way 1 ruffian should
be capable of actually moving the amplifier.

LIft it???? are you kiddin me?

im thinking of putting tank treads on it and driving it to work!

Seriously, i have the chassis laid out so it wont be that bad. BUT, i need a Mosfet count for the heatsink layouts before i know the final length. once i have that, i can get on some serious AutoCAD drawings and figure out the specs exactly.



Zero

 

[piotrzurawski]

Hi folks !

First of all I want to express my very best thanks to Mr.Pass and all who developed this fantastic board of audio knowledge.

After building my Aleph-X I'm very interested with all is going arround Nelson's amps. Here what I found on Ebay reschearching large caps:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=36336&item=3850445015&rd=1&ssPageName=WDVW

Did you know this brand and how realiable they are? 240.000uF sounds good for a kilowatt amp

Regards

Piotr

 

[Nelson Pass]

I use that brand a lot. But you want to find out how old they
are. Past 10 years you don't want them.

Also, I did not develop this board. It was already here when I
showed up.

 

[jacco vermeulen]

Also, I did not develop this board. It was already here when I
showed up.

Maybe you'd better not sneak-er off from this board!!

 

[thylantyr]

Or as Gene Wilder would have said it:

That's ZONKENSTEEN!

Funny stuff, I don't think some folks get it

 

[jacco vermeulen]

And now for something completely different

Funny stuff, I don't think some folks get it

My favorite audio designer would enjoy a Maine lobster, have the looks and shoes of Julius Marx, the ears of Adolph Marx, the wit of both, his articles i read with a smile.
Give that man a cigar !

 

[jacco vermeulen]

caps

only wondering why they are so big

From what i have read on capacitors the size is not only determined by the square area of the foil and their distance (for capacity and voltage), also by the type of electrolyte.
The electrolyte is the main factor for longevity and speed.
The computer grade capacitors i have seen are bigger than average.
I still have a bunch of Siemens LL (long life) caps, these are 47000uF/40 V, dimensions are 4.25 x 3(106x76).

Maybe there is use for a tech board ?

 

[Coulomb]

Hi folks !

First of all I want to express my very best thanks to Mr.Pass and all who developed this fantastic board of audio knowledge.

After building my Aleph-X I'm very interested with all is going arround Nelson's amps. Here what I found on Ebay reschearching large caps:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=36336&item=3850445015&rd=1&ssPageName=WDVW

Did you know this brand and how realiable they are? 240.000uF sounds good for a kilowatt amp

Regards

Piotr

I use that brand a lot. But you want to find out how old they
are. Past 10 years you don't want them.

Also, I did not develop this board. It was already here when I
showed up.

These caps were made in the 33rd week of 1997.

Regards

Anthony

 

[MikeW]

progress

Have you guys done anything yet?

 

[jam]

What's wrong Mike.......................are your pant's on fire?

 

[Zero Cool]

Ahhh Yes, the Labs of Smarmy/Cool Zero/Dog are busy at work! Er I mean at work

The Master Pass has handed us the first nugget of info , not ready yet for publishing but we are hammering out the details now.

I have been busy trying to figure out how to stuff all the power supply components into a 19" wide, 36" deep, 36" tall chassis and still have room for the amp section!!!

Smarmy Dog has been busy with the hardware and some great concept drawings and has been coming up with some amazing IDEA"S!!!!

These babies are going to be killer! (Pun intendid)

Rest assured, once we have something solid to Publish, Im quite sure the Pass man will do so! , but yes we are hard at work!


Zero

 

[zinsula]

Name of amp?

Will this amp be the tresPASS??

 

[SmarmyDog]

Well, if he uses Gallium Arsenide (GaAs) fets in the front-end (for bandwidth and reduced noise), we could call it the Pass GaA....

er, nevermind

-Casey

 

[MikeW]

What's wrong Mike.......................are your pant's on fire?

I don't think so.