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AKSA's Lender Preamp with 40Vpp Output
AKSA's Lender Preamp with 40Vpp Output
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Old 28th February 2018, 09:12 PM   #471
pcgab is offline pcgab  United States
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AKSA's Lender Preamp with 40Vpp Output
Quote:
Originally Posted by xrk971 View Post
Just send JPS64 a PM and he will provide you the set for $5 or some nominal cost. Check with JP.
Awesome, I need to order some as well.

Thanks X!
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Old 3rd March 2018, 01:10 PM   #472
Skylar88 is offline Skylar88  South Africa
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Default Schematics

Can someone point me to the latest schematics and BOM, please?

It would be useful if it could be added to the first post, but perhaps diyAudio doesn't allow editing of posts (after the initial timeout).
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Old 3rd March 2018, 11:41 PM   #473
xrk971 is offline xrk971  United States
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AKSA's Lender Preamp with 40Vpp Output
Hi Skylar,
It’s in the GB thread post 1 if you want to get building.

AKSA's Lender Preamp with 40Vpp Ouput GB

Depending on which daughterboard you are making, the schematic and BOM is different. I think you are doing through hole so look for that.

Schematic for TH DB:
Click the image to open in full size.

Schematic for MB:
Click the image to open in full size.

Revised BOM for MB:
http://www.diyaudio.com/forums/attac...04_01_2018-zip

BOM for TH DB:
http://www.diyaudio.com/forums/attac...er-pre-tht-zip





Stuffing guide:
Click the image to open in full size.
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Last edited by xrk971; 3rd March 2018 at 11:45 PM.
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Old 4th March 2018, 05:28 AM   #474
Skylar88 is offline Skylar88  South Africa
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No wonder I couldn't find it!

Much appreciated, X.
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Old 4th March 2018, 10:04 AM   #475
JPS64 is offline JPS64  Germany
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AKSA's Lender Preamp with 40Vpp Output
Ive to clarify one point and Ive to say that Ive never started Melf/Minimelf GB then nobody interested.

Ive sending and going to send a few sets from my private stock thats all.

Is there a demand for Melf/Minimelf sets? I would start a GB if more then 20 participants.

JP
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Old 4th March 2018, 02:51 PM   #476
pcgab is offline pcgab  United States
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AKSA's Lender Preamp with 40Vpp Output
Quote:
Originally Posted by JPS64 View Post
Ive to clarify one point and Ive to say that Ive never started Melf/Minimelf GB then nobody interested.

Ive sending and going to send a few sets from my private stock thats all.

Is there a demand for Melf/Minimelf sets? I would start a GB if more then 20 participants.

JP
I would be interested in a few sets if you do start a gb. No worries if you don't have enough interest.
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Old 7th March 2018, 10:47 PM   #477
jwjarch is offline jwjarch  United States
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Quote:
Originally Posted by xrk971 View Post
The new ALPHA amp thread is here:

Aksa Lender P-mos Hybrid Aleph (ALPHA) Amplifier
Hey X,

What input caps did you settle on for your AKSA Lender Pre that you're using to drive your ALPHA 20W?
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Old 9th March 2018, 05:22 AM   #478
xrk971 is offline xrk971  United States
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AKSA's Lender Preamp with 40Vpp Output
Quote:
Originally Posted by jwjarch View Post
Hey X,

What input caps did you settle on for your AKSA Lender Pre that you're using to drive your ALPHA 20W?
I was using CBB 3.3uF 250v MKT (cheap no name) and quite happy with it. I tried switching to Dayton 10uF PMPC-10 1% 250V caps I had lying around from a crossover project and really could not tell a difference. I may try a 4.7uF 60V Wima MKP next. So not settled really, but then, not unhappy either. I do know that a 10uF 35v Elna Silmic II has always been a good standby, you really can't go wrong with it, other than if you are an elco cap hater, it works fine too.
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Old 9th March 2018, 06:09 AM   #479
jwjarch is offline jwjarch  United States
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Thanks X. I was curious to see where you ended up on the uF value as well as what those caps were that you used in your first build. I'm planning on starting with the Elnas and going from there. I might bypass with various films to see if there's a difference there. I also have some 4.7uF Mundorf Evo Oils on the way from partsconnexion. Curious to try some cap rolling and see if I hear any differences. I've been itching to populate boards. We just had our 2nd kid so sneaking out to the garage hasn't been an option lately.
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Old 9th March 2018, 11:33 PM   #480
xrk971 is offline xrk971  United States
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AKSA's Lender Preamp with 40Vpp Output
Congrats on the second kid. If you leave the PCB and all parts (assuming non SMT) in a ziplock along with pair of pliers and schematic. You can do it anywhere by squeezing in 20 min here and there. solder later.
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