Pics of YAA. Flavour no. 3 :) - diyAudio
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Old 16th December 2003, 07:28 PM   #1
Kermit is offline Kermit  Norway
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Talking Pics of YAA. Flavour no. 3 :)

Yet another aleph up and running. To be honest I started building this almost a year ago, and I don’t know if it’s really finished either. It’s been fully functional for over 6 months, but I’m still playing around with it, swapping part etc.
I still live in the stoneage so I don’t have a digital cam, so the pics are from when I just got it up and running. I have also done some changes since the pics where taken.
The compact size posed a bit of a challenge with the transformer inducing a hint of hum. The biggest issue however was the mechanical hum from the transformer itself. I tried DC mains filter and what not. I had almost given up and was considering trying to get a replacement transformer, when I swapped the standard bridge rectifier for some high speed diodes with RC snubbers. To my joy and surprise the transformer became dead silent?? Anyone care to take a thwack at explaining how that is possible?

Enough chit-chat here’s the pics:
This one is from my living room in my new apartment just after we mowed in:
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Old 16th December 2003, 07:29 PM   #2
Kermit is offline Kermit  Norway
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The rear panel
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Old 16th December 2003, 07:30 PM   #3
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The parts before assembly
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Old 16th December 2003, 07:33 PM   #4
Kermit is offline Kermit  Norway
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Pcb's
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Old 16th December 2003, 07:35 PM   #5
Kermit is offline Kermit  Norway
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On the workbench... ehh kitchen table
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Old 16th December 2003, 07:45 PM   #6
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No, that's properly phrased " YAAR "

Yet Another Aleph Running

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Old 16th December 2003, 07:52 PM   #7
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Red leds, nice touch
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Old 16th December 2003, 08:03 PM   #8
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VERY NICE INDEED!!!!

Finally someone ,who doesn't put those ugly blue leds on front panel!

Mr. Pass
I always wondered how do you come up with the resistor value for the leds in Alephs?
They always light just about perfect...not too soft ,not to strong..


Bartek
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Old 16th December 2003, 09:39 PM   #9
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Default hopping you'll post more

I am green wth envy........
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Old 17th December 2003, 10:12 AM   #10
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Sven,

nice amp you´ve build there!
Since I also have some mechanical humm in my Aleph 5 could you tell me wich diodes you used and what values for your RC snubbers?

thanks,

william
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