I think I may have to move the preamp boards over to my Etsy shop as it’s too hard to keep track of the occasional request for boards here on a GB format. I will need to order more boards as all out at this point.
The daughter cards contain the core amp module. It lets you make different ones to tailor to your needs. Gain, headphone amp, bias current, components, etc. swappable gain is a useful addition to any preamp. The cores are very cost effective.
The daughter cards contain the core amp module. It lets you make different ones to tailor to your needs. Gain, headphone amp, bias current, components, etc. swappable gain is a useful addition to any preamp. The cores are very cost effective.
Recent review of this preamp by DrPro.
http://www.diyaudio.com/forums/anal...ender-preamp-40vpp-output-58.html#post5407342
http://www.diyaudio.com/forums/anal...ender-preamp-40vpp-output-58.html#post5407342
There are some people waiting for more preamp boards and I placed an order a few days ago. However running into some problems with them complaining about the Gerbers having 4 boards on one design. Even though same place made it for me last November. Anyhow, it may be another 10days until I get them.
The Main Boards and TH daughterboards are here in case anyone wants to order them.
Aksa Lender SE Class A Preamp
Aksa Lender SE Class A Preamp
...I am using an RK09 Alps pot from my pocket amp and attached a short piece of vinyl tubing to allow the shaft to be operated from the front...
What do you -and others- think about Vishay Cermet pots?
https://www.mouser.es/ProductDetail/Vishay-Sfernice/P11S2F0GGSY00D0063?qs=sGAEpiMZZMtC25l1F4XBU8qlp5jc3byHbnxw7aa6tIg%3d
https://www.mouser.es/datasheet/2/427/p11sp11a-239880.pdf
Cermet potentiometers – Audial
Cermet potentiometers of course are not new, but are still relatively unknown. The reason they are used in the Model A is simple: they are sonically clearly superior to any other potentiometer type.
Still, they (apart form being somewhat fragile) have one shortcoming too: low level inter-channel miss-tracking. I am not aware if this was discussed previously anywhere, so more information on this follows...
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Another Aksa Lender Preamp is born! Congrats to Jwarch for his new preamp.
AKSA's Lender Preamp with 40Vpp Output
AKSA's Lender Preamp with 40Vpp Output
There’s a good discussion on the BOM right now in other thread and also JPS64’s own build.
AKSA's Lender Preamp with 40Vpp Output
AKSA's Lender Preamp with 40Vpp Output
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