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Aleph J Schematic
Aleph J Schematic
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Old 9th November 2012, 08:48 AM   #1281
bobodioulasso is offline bobodioulasso  Europe
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Install feet first so you'll be able to set the bias properly.
High feet are good.
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Old 9th November 2012, 09:25 AM   #1282
Zen Mod is offline Zen Mod  Serbia
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Aleph J Schematic
yup

you need at least 4cm of clearance , for proper air circulation
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Old 9th November 2012, 01:23 PM   #1283
kroyin is offline kroyin  India
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Now that my F5T will soon replace my F5 ,I intend to reuse my F5 chassis, heatsink & psu for Aleph J. So a few questions

--If I omit C1 will I have to jumper the C1 cap pads?
--I have 2 Silmics ,so better to use them @ C3 . Can someone tell me the voltage rating @C2, I have some 220uF 16v,25V
--If I use BC550/560 do any of the resistor values need change. Also will my bias current go down?

That's all I can think of now :-)

Thanks
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Old 9th November 2012, 01:39 PM   #1284
Zen Mod is offline Zen Mod  Serbia
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Aleph J Schematic
Quote:
Originally Posted by kroyin View Post
Now that my F5T will soon replace my F5 ,I intend to reuse my F5 chassis, heatsink & psu for Aleph J. So a few questions

--If I omit C1 will I have to jumper the C1 cap pads?
--I have 2 Silmics ,so better to use them @ C3 . Can someone tell me the voltage rating @C2, I have some 220uF 16v,25V
--If I use BC550/560 do any of the resistor values need change. Also will my bias current go down?

That's all I can think of now :-)

Thanks
-- yes

--for C3 16V is plenty enough , for C2 35V is tight , 50V means peaceful sleep

--just use them and do not worry
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Old 9th November 2012, 01:56 PM   #1285
kroyin is offline kroyin  India
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Thank you Aleph Angel , all the boys have moved on to shinier stuff the Aleph still seems to be your precious
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Old 9th November 2012, 03:52 PM   #1286
bobodioulasso is offline bobodioulasso  Europe
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Do you know an Aleph J dissipates some more than an F5?

Last edited by bobodioulasso; 9th November 2012 at 03:54 PM.
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Old 9th November 2012, 04:14 PM   #1287
kroyin is offline kroyin  India
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Yes I do, my heatsink can handle F5T V2 in a pinch
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Old 9th November 2012, 04:20 PM   #1288
bobodioulasso is offline bobodioulasso  Europe
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Nice.
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Old 10th November 2012, 12:05 AM   #1289
albertNL is offline albertNL
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Aleph J Schematic
The feet will take a bit longer, but for as far as I know I do not need to set the bias on this amp. In thought the bias was determined by the circuit. There is nothing to adjust (no trimpots). Am I missing something?
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Old 10th November 2012, 12:09 AM   #1290
AudioSan is offline AudioSan  Norway
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that's correct albertNL
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