New Aleph Mini PCB GB

[pinkmouse]

Brian, your Aleph pages are down!


:edit: Hmm, working now. My order placed.

 

[BrianGT]

(repost with updated totals)

Alright, here are the current totals for orders submitted thus far:

Current order totals
86 amp boards
90 power supply boards

Payment deadline
March 31st 2005 (tomorrow night)

Order website
http://www.chipamp.com/aleph


I have received several requests for combining the shipping of gainclone boards from my anniversary sale:
http://www.chipamp.com/specials.shtml
This is possible, and I can ship the gainclone boards with no extra shipping charges. Drop me a mail about this, and I will handle it.

--
Brian

 

[moving_electron]

Re: Re: Apex Jr. Nichicon

Wonder why he didnt catch this.

The "SPECIAL PURCHASE.........Snap-In caps...
12,000uf 50V $1.29ea" are also in the same Apexjr "new" page.

These are actually a smaller (narrower footprint) but taller. Not particularly tall but taller than the 10000uF 63V,

These 12,000uF 50v are Nichicon also and I believe the same family. Lower price too. What is not to like?

By the way the 12,000uF can be made to fit the Digi01 regulated power supply boards. A bit oversize for those boards but they can be made to work.

 

[Mark_zh]

Ordering

Hi all!
I'am novice here and logged on to find some info about aleph.
Find group ordering! Please help! Briangt don`t answering to my emails.
I need to order Alehp PCBs to Russia.
Reserve one place to me, PLEASE!

 

[BrianGT]

Re: Ordering

Hi all!
I'am novice here and logged on to find some info about aleph.
Find group ordering! Please help! Briangt don`t answering to my emails.
I need to order Alehp PCBs to Russia.
Reserve one place to me, PLEASE!

Mark,

I sent a reply to you last night. I will send it again if you did not receive it. I have added you to the list for boards. I am not sure how we can organize payment, since Paypal can not be used from Russia. Lets handle this over e-mail.

--
Brian

 

[steenoe]

Reserve one place to me, PLEASE!

Thats the spirit Mark, welcome to the forum

Steen.

 

[BrianGT]

(repost with updated totals)

Alright, here are the current totals for orders submitted thus far:

Current order totals
111 amp boards
119 power supply boards

Payment deadline
March 31st 2005 (tonight)

Order website
http://www.chipamp.com/aleph

I will submit the order tomorrow morning for 150 boards of each, which should cover the orders coming in late. Orders placed after the deadline will be first come, first serve. If orders for over 150 boards are received, I will place another order.

--
Brian

 

[PierreG]

If i want to use it for an Aleph 5, can I order more output boards?
Because 4 output boards are included with one PCB set, and I need 6.

 

[dhole]

PierreG You can use 2 output boards and 6 devices per channel . Mark finnis did so in his aleph 5's and so have others. If you want to have 12 per channel you would need 8 boards I would have thought. so I suppose you would have to buy 2 sets of boards.
I am planning to make the Aleph 5 with 6 devices per channel.
regards
dave

 

[chipco3434]

Other than rail voltage, what other differences are there between the 30 and the 5?

Brian's page indicates that rails are 34VDC on the 5. Would it be ok to use a 25VAC transformer with the resulting 35VDC rails for constructing a 5?

 

[troystg]

I think it would be a good idea to have a swap shop for those not using output boards to those using.. Whether cash is involed or not is up to the participants..

So a simple note saying I'm not using, x sets available to the highest bidder.... Or fee to a good home...

 

[jleaman]

TOROIDS
2 X 25V 50 Vct 100 VA. $15.00ea
2 X 28.4v 56.8Vct 160Va $19.95ea
2 X 21V 42Vct 80Va $10.00ea


To high of voltage and not enough VA for the aleph mini a's.

 

[troystg]

TOROIDS
2 X 25V 50 Vct 100 VA. $15.00ea
2 X 28.4v 56.8Vct 160Va $19.95ea
2 X 21V 42Vct 80Va $10.00ea


To high of voltage and not enough VA for the aleph mini a's.

But they work GREAT for small GC's...

And he also has MANY other parts that will work for the Mini-A... Big caps... 68Kuf 50 volt...
IEC sockets...
Etc...

 

[BrianGT]

Alright, here are the current totals for orders submitted thus far:

Current order totals
135 amp boards
139 power supply boards

Payment deadline
April 3rd 2005 (sunday night)

Order website
http://www.chipamp.com/aleph

I have moved the deadline to Sunday night, so that Mark can try out the power supply pcb prototype that he received yesterday.

--
Brian

 

[rick57]

Was it Frank Sinatra who sang

“Everybody, loves Class A, sometime . . ”

 

[kilowattski]

No, it was Dean Martin.

Everybody loves somebody sometime........Ah forget it.....the dogs are starting to howl.

 

[Coulomb]

No, it was Dean Martin.

Everybody loves somebody sometime........Ah forget it.....the dogs are starting to howl.

Shakespear's Dog's or Tarentino's?

 

[Mark A. Gulbrandsen]

OK, Now to get this thread back on track....... . I received the power supply pcb and have gathered up most of the parts to assemble it...... I probably have the rest of what I need around here some place. Photos have been posted on Briansd Gallery.More will be posted later this weekend.

My plan is to build it as a +\- 15 volt supply and then test it straight with 30,000 mfd per rail, then as a CRC configuration, and then as a CLC configuration with 2.5 mh per rail. I am going to skip running this stuff on power supply simulator but if someone else would want to please do so and also reccomend a resistance value for the CRC version. I was thinking of around 1 ohm or thereabouts.

Thanks!

Mark

 

[jleaman]

Looks good Mark. Hope to hear some new's. Did you send them resisters out ?

J'

 

[sklimek]

Conragulations this thread just hit 500 replies!

Does anyone know what the constant current or resistive "load" is that I could plug into Duncan psud2 simulator for the Aleph 30?

Stan