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Old 12th January 2007, 09:41 AM   #1001
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the monoblocks are 164mm (H) x 248mm (W) x 263mm (D) excluding binding posts.

I used the Conrad MF250-151.1 heatsinks (D= 250mm heatsink, 10mm front panel, 3mm rear panel), which seem to give adequate cooling but have meant that the interior is kind of tight. I'd originally planned to use a 300Va transformer but went with a 500Va. Because of the additional height of the larger trafo I couldn't mount the main amp board above the psu as planned, and have had to mount it onto the rear panel. The layout is less than ideal but seems to work ok.


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Paul
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Old 12th January 2007, 10:17 AM   #1002
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Thanks for the detailed info

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Old 22nd January 2007, 11:06 PM   #1003
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Can anyone offer guidance on using R6 to adjust DC offset?

What are ballpark values to use in this position?


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Paul
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Old 23rd January 2007, 12:15 AM   #1004
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Default Switches

Hello All,

While you are busy chatting about your Aleph 30 amplifiers, have any of you chosen attractive looking, high quality power switches - preferably from Digikey, because they ship efficiently to Australia, and I am going to do another order from them soon (or I guess from Farnell who are reasonably well organized locally.)

My next project is to be some Aleph 3/30/Babelfishs and I think it about time I put on-off switches on my amplifiers, rather than just using the wall power switch.

They have to be "nice looking" and "high quality" because I am going to be cutting into my black anodized front panels (something I have avoided so far) and I would like them either to last a long time or be reliably replacable without having to re-cut the front panels of my cases.

Regards,
George.
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Old 23rd January 2007, 12:25 AM   #1005
Zen Mod is offline Zen Mod  Serbia
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Default Re: Switches

Quote:
Originally posted by GeorgeBoles
Hello All,

While you are busy chatting about your Aleph 30 amplifiers, have any of you chosen attractive looking, high quality power switches - preferably from Digikey, because they ship efficiently to Australia, and I am going to do another order from them soon (or I guess from Farnell who are reasonably well organized locally.)

My next project is to be some Aleph 3/30/Babelfishs and I think it about time I put on-off switches on my amplifiers, rather than just using the wall power switch.

They have to be "nice looking" and "high quality" because I am going to be cutting into my black anodized front panels (something I have avoided so far) and I would like them either to last a long time or be reliably replacable without having to re-cut the front panels of my cases.

Regards,
George.
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Old 23rd January 2007, 02:03 AM   #1006
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Default Re: Re: Switches


I order and use the crap out of the first one he posted, but beware the contacts are VERY tiny so large gauge wire will not fit.

But the action is very good and they are pretty if you find beauty in such things.. I do.
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Old 16th February 2007, 02:59 PM   #1007
MikeW is offline MikeW  United States
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I have a transformer and some caps that would be perfect for a mini-a. If anyone is interested send me an E-mail. Only in the US.
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Old 28th March 2007, 04:21 AM   #1008
BrianGT is offline BrianGT  United States
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FYI: I ordered more boards for the mini Aleph amplifier pcb set, and also the big power supply boards. They are $9 each. More info here:
new batch of mini Aleph amplifier and PSU boards
They are black with gold plating this time.

--
Brian
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Old 28th March 2007, 04:39 AM   #1009
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by BrianGT
FYI: I ordered more boards for the mini Aleph amplifier pcb set, and also the big power supply boards. They are $9 each. More info here:
new batch of mini Aleph amplifier and PSU boards
They are black with gold plating this time.

--
Brian

thank's Brian.
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Old 29th April 2007, 10:33 PM   #1010
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FYI, You might want to stay away from the SMT boards. I have 2 of them for sale at cost (Brian's boards). I can't get the IRF9610 in a SMD package unless I order 250 of them. The boards are beautiful but useless to me.
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