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Old 29th March 2012, 10:22 PM   #21
Zen Mod is offline Zen Mod  Serbia
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reference to sch in first post of this very thread.

R10 is , say, bleeder for (un-needed) input cap
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Old 29th March 2012, 10:37 PM   #22
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reference to sch in first post of this very thread.
Doh! same schematic......

Thanks!
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Old 30th March 2012, 07:30 AM   #23
tonimxp is offline tonimxp  Italy
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Quote:
Originally Posted by Zen Mod View Post
reference to sch in first post of this very thread.

R10 is , say, bleeder for (un-needed) input cap
Hi!Zen ,thanks for your reply....a little question for your answare:
Are you sure that your considerations about c1 and r1 are correct also for the balance use of the amp?
If yes.. for you, why Mr.Pass had used this items ?
Thanks in advance.
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Old 30th March 2012, 08:58 AM   #24
Zen Mod is offline Zen Mod  Serbia
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- yes ; see Babelfish J sch

- foolproof reasons
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Old 30th March 2012, 09:13 AM   #25
vivanco is offline vivanco  Italy
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[QUOTE=Zen Mod;2965917
- foolproof reasons[/QUOTE]


but from you advice, that is, remove C1 and R10, would not seem so foolproof , why precisely, Mr. Pass, designed the circuit with these two components,,, is not it?
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Old 30th March 2012, 09:29 AM   #26
Zen Mod is offline Zen Mod  Serbia
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because of possibility that his amp is going to buy some ignorant bstrd , eager to connect it to source with some DC on output ?

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Old 30th March 2012, 10:19 AM   #27
vivanco is offline vivanco  Italy
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because of possibility that his amp is going to buy some ignorant bstrd , eager to connect it to source with some DC on output ?


perfect, now it is all clear, except for a small doubt that inquiries concerning R10, that is, if you Elima this resistance, you do not create an imbalance between the two half-waves of negative and positive, the audio signal?
I say this because I see that on the input signal positive there the resistor network formed by R1/R2/R3 and negative input is formed by the resistive network R9/R10.
thanks for your patience.
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Old 30th March 2012, 10:39 AM   #28
Zen Mod is offline Zen Mod  Serbia
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do not worry

as I said - look Babelfish J sch

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Old 30th March 2012, 11:03 AM   #29
gadut is offline gadut  Indonesia
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is it save to use 25V cap for Aleph30 power supply? I was going to purchase in PCX for nichicon super through 15.000uF 50V, but when I look at MUNDORF M-Lytic AG @25V with cheaper price, it's a huge improvement on cap bank capasitance size. need your advice.

- Nichicon ST -> 8 x 15.000uF 50V @$27 = $216 (total 120.000uF)
- Mundorf Ag -> 12 x 47.000uF 25V @$17 = $204 (total 564.000uF)

I find that papa is using 25V caps on his F5

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Last edited by gadut; 30th March 2012 at 11:10 AM.
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Old 30th March 2012, 11:16 AM   #30
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Quote:
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.......

I find that papa is using 25V caps on his F5

........
enough said .

xformer secondaries - 2x18Vac
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