Thanks for congratulations 6L6!
I had a lot of fun planning and constructing the mechanical part and complete electrical components.
A big "thank you" to 6L6 for YOUR illustrating building up Aleph J!!!🙂🙂 Often I used your pictures and comments!
And you are right:
the sound is great and much better I ever listened to commercial (expensive) amps.
The loudspeakers are Quad ESL 57.
I had a lot of fun planning and constructing the mechanical part and complete electrical components.
A big "thank you" to 6L6 for YOUR illustrating building up Aleph J!!!🙂🙂 Often I used your pictures and comments!
And you are right:
the sound is great and much better I ever listened to commercial (expensive) amps.
The loudspeakers are Quad ESL 57.
damn Fugly!
even if those power wires are looking typically audiophool tiny - potted Donut for sleeping well , but wires are sissy
though , don't take me too seriously - overkill is my middle name 😉
even if those power wires are looking typically audiophool tiny - potted Donut for sleeping well , but wires are sissy
though , don't take me too seriously - overkill is my middle name 😉
"This amplifier is a direct descendant of the Aleph 3"
I can buy an old Aleph 3, ready of course. scary starting to build one. my question is if J sounds bätter than 3? how bätter?
I can buy an old Aleph 3, ready of course. scary starting to build one. my question is if J sounds bätter than 3? how bätter?
this was posted to me a time ago.
"Meanwhile i got an opportunity to buy 2sj 109BL grade dul jfets . so i decided to build Aleph J . Store board was not comparable to fix this dulal jfets on boad ( it was designed to put sj74BL and sk170 Bls ) . Then i purchased one peter danial board from our diyaudio member which was suitable to fix this dual jfets .
Aleph 30 was bit of dark and was producing marvelous sound for me .
AJ was more transparent while compare with A30 . I didnt feel any bass deficiency . pure sound .I like more aj .
I am using pumpkin to Drive my AJ. I am fully satisfied with its sound . Do you have any plan to convert your A30 to AJ , yes will like it . "
(Aleph 30 really near to A3)
If you ask more People you get more different opinions.
I own a aleph J clone and I love it. Till now, had no Chance to compare it to a irf9610 input
"Meanwhile i got an opportunity to buy 2sj 109BL grade dul jfets . so i decided to build Aleph J . Store board was not comparable to fix this dulal jfets on boad ( it was designed to put sj74BL and sk170 Bls ) . Then i purchased one peter danial board from our diyaudio member which was suitable to fix this dual jfets .
Aleph 30 was bit of dark and was producing marvelous sound for me .
AJ was more transparent while compare with A30 . I didnt feel any bass deficiency . pure sound .I like more aj .
I am using pumpkin to Drive my AJ. I am fully satisfied with its sound . Do you have any plan to convert your A30 to AJ , yes will like it . "
(Aleph 30 really near to A3)
If you ask more People you get more different opinions.
I own a aleph J clone and I love it. Till now, had no Chance to compare it to a irf9610 input
I'm just starting to build my Aleph J. For some reason, my BOM had trimmer pots of 100k, 2k, and 500R instead of two 2k. I seem to remember some reason for that deviation, but now I can't find it and I can't think of how to search the thread. Can anyone help?
R7 2K pot. Set to 1K before installation.
R27 100K pot. Set to 68K before installation.
R8 Use 1K resistor
R27 100K pot. Set to 68K before installation.
R8 Use 1K resistor
One additional question: Power supply
I am going to be powering this from a +/- 24VDC battery bank (usually nearer +/- 25 VDC). It is my understanding that batteries act like REALLY REALLY BIG but SLOW capacitors and that therefore they need some sort of capacitor bank to 'speed them up' even though there is obviously no ripple to deal with. I'm thinking some sort of electrolytic paralleled with a film, but is there any good way to determine sizes?
Thanks
I am going to be powering this from a +/- 24VDC battery bank (usually nearer +/- 25 VDC). It is my understanding that batteries act like REALLY REALLY BIG but SLOW capacitors and that therefore they need some sort of capacitor bank to 'speed them up' even though there is obviously no ripple to deal with. I'm thinking some sort of electrolytic paralleled with a film, but is there any good way to determine sizes?
Thanks
More is nearly always better.
Measure the output impedance/internal resistance of your battery, it would also be informative to determine if the battery creates any noise at different current outputs. Without knowing all the information it's hard to make a suggestion.
10uF film is good on the output
Measure the output impedance/internal resistance of your battery, it would also be informative to determine if the battery creates any noise at different current outputs. Without knowing all the information it's hard to make a suggestion.
10uF film is good on the output