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Old 5th December 2004, 04:36 PM   #1
Sander is offline Sander  Netherlands
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Join Date: Oct 2004
Default Dutch Aleph-X parts groupbuy

Hi,

There are lots of dutch people on this forum building (or intend to build) the Aleph-X amplifier. Maybe we can arrange a groupbuy so we can buy the audiophile parts together? I was thinking about the resistors, (source) caps, transistors, transformers etc. Maybe we can also get a good heatsink offer for example. Hope to hear from you!

Sander
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Old 6th December 2004, 07:57 PM   #2
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Join Date: Jan 2004
Location: Netherlands
Hi Sander,


I was making some phone calls today.
I called Amplimo for 1000VA transformers, with a nice black aluminium round enclosure. They call me back because the enclosure for 1000VA is not standard. Also I know these guys, maybe I can get some discount.

Also we can order from Farnell, the higher the quantity, the better the price.

I was also looking for heatsinks. I have found really nice ones for around 450 Watts, but they were 120 Euro's, yikes!
Also have a look at this:
http://www.conradheatsinks.com/products/single_f.html
Unfortunately their biggest heatsink is a little to small for my amp. I want to go with 25VAC, 16 FET's, 8A Bias.
I've send them an email to ask weither they ship to The Netherlands or not.


Have a nice day.
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Old 6th December 2004, 08:32 PM   #3
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Location: Netherlands
Conrad does send to the netherlands. I was involved in an earlier attempt to buy heatsinks from down under, this was the offer I got:

>MF30-151.5 x 10 @ 42.90ea. 429.00
>Delivery (FedEx Air 3-4 days) 225.00
>Delivery discount to overseas - less 50% (112.50)
>Total
541.50 (EUR328.23)

Because of the weight 10 pieces is maximum to ship with fedex otherwise it will be by boat (which takes up to 6 months )

Good luck on your attempt

Ralph
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Old 6th December 2004, 08:48 PM   #4
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Join Date: Oct 2002
Location: Holland, The Hague
Al eens bij Deltour geinformeerd?

bv
http://www.deltourheatsinks.nl/img/large/DEF103.JPG

of

http://www.deltourheatsinks.nl/img/large/DEF027.JPG

(oops forgot to write english )
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Old 6th December 2004, 09:29 PM   #5
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Default DEF103

Duck-Twacy,

Thanks for the link. I have 8 pieces (250mmx300mmx84mm) of
this DEF103. Been saving them for a serious AX.
Couldn't find any info on them, so I did some measurements a
while ago.
Results are quite similar to the graph in your link.
These are anodized sinks (transparant)
Salvaged them from a scrap yard.

Regards.
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Old 6th December 2004, 10:47 PM   #6
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Join Date: Jan 2004
Location: Netherlands
Quote:
Originally posted by Duck-Twacy
Al eens bij Deltour geinformeerd?

bv
http://www.deltourheatsinks.nl/img/large/DEF103.JPG

of

http://www.deltourheatsinks.nl/img/large/DEF027.JPG

(oops forgot to write english )
Any idea what they cost?

I like the visual appearance of these better:
http://www.seifert-electronic.de/ima...cs/kl-273z.gif
But they cost EUR120,- for 150mm length.
http://www.elincom.nl/

But with $112,50 delivery costs Conrad aint cheap either.


Caps for the power supply are expensive too. I've looked at Farnell and Conrad. Any other options? Is the brand important?

We could also buy IRF9610's together so we can match them nicely.
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Old 7th December 2004, 12:06 AM   #7
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Join Date: Oct 2003
Location: San Jose
Just FYI... Check the heatsink prices at MM Metals www.mmmetals.com or ThermaFlo www.thermaflo.com.

With the dollar/euro conversion the US stuff has to be cheap. I just got a great bid from ThermsFlo for my AlephX heatsinks.


Just a thought.

Good luck,

-David
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Old 7th December 2004, 05:59 PM   #8
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Join Date: Oct 2002
Location: Holland, The Hague
Quote:
Originally posted by TheJudge

Any idea what they cost?

I like the visual appearance of these better:
http://www.seifert-electronic.de/ima...cs/kl-273z.gif
But they cost EUR120,- for 150mm length.
http://www.elincom.nl/

But with $112,50 delivery costs Conrad aint cheap either.


No sorry you have to ask them.

I bought a 300*200*86 mm Seifert for around 65 at Clofis (ex btw)
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Old 7th December 2004, 06:02 PM   #9
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Thanks David, the Thermflo heatsinks look really nice.

Duck-Twacy, calling them tomorrow.
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Old 7th December 2004, 07:40 PM   #10
Sander is offline Sander  Netherlands
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Join Date: Oct 2004
I'm glad to see members interested in a dutch groupbuy!

I've found a dutch heatsink reseller nearby. It is Deltour and stationed in Amsterdam. The site is currently down, but I've seen useable heatsinks. When I know how many members are interested I'll ask for an quantum heatsink price.

www.deltourheatsinks.nl

Reichelt.de sells 800VA toroids. Do they look interesting to you?
Price: 55,80

800VA Reichelt Toroids

MOSFETS?

IRFP 044N 1.05/pc

IRFP 240 1.25/pc

Does somebody know a good audiophile passive component reseller nearby?

Offtopic: Pffff...Ik moet nodig weer eens oefenen met mn engels.
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