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Old 20th May 2021, 01:10 AM   #1
xrk971 is offline xrk971  United States
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SLB Power Supply
Default SLB Power Supply

This thread is a place to organize the important items such as the most recent schematics, BOM, shopping cart, and build notes. Folks are welcome to help me by posting what they think is the most recent and accurate data.

Original thread here:
The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB

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Thank you in advance for your contributions!
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Last edited by xrk971; 20th May 2021 at 01:12 AM.
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Old 23rd May 2021, 10:16 PM   #2
xrk971 is offline xrk971  United States
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Here is a great use for the single rail SLB: the LuFo SE Class A amp.

LuFo Amp - 39w SE Class A from 28v Rail

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I measure under 1mV rms for the output at 28v and 3A.
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Old 6th June 2021, 05:41 PM   #3
Ryssen is offline Ryssen  Sweden
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What is the price for a SLB for the LuFo Amp - 39w SE Class A from 28v Rail?
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Old 6th June 2021, 05:56 PM   #4
xrk971 is offline xrk971  United States
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It’s in my shop - link in my signature.

Or here:
Smooth Like Buttah SLB Class A PSU | Etsy

There are two versions. V1 has minor error (can be fixed by using flag heatsink vs PCB mounted heatsink for the TO126 BJT - does not affect performance) and v2 which is final good version. Both are nice 2mm thick, 2oz copper and ENIG finish.
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Old 9th June 2021, 05:54 PM   #5
xrk971 is offline xrk971  United States
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Tungsten Audio just completed his PSU upgrade to the DIY Sony VFET amp. What a super build and great idea to put dual SLBs in their own chassis!

DIY Sony VFET Builders thread

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Apparently, the improvement in sound quality is superb:
DIY Sony VFET Builders thread

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Old 26th July 2021, 01:17 PM   #6
twocents is offline twocents  South Africa
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Quote:
Originally Posted by xrk971 View Post
A new batch of SLB DR's just arrived - so if anyone has been waiting for them to come in, you can place your orders now. These are in white solder mask with ENIG. 2mm thock boards and 2oz cipper.
Hi X, you need to update the stock level on the Etsy store - it still shows out-of-stock when trying to order.
Just a heads-up. I am not going to order any at this stage.
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Old 26th July 2021, 02:30 PM   #7
xrk971 is offline xrk971  United States
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Thank you. Sorry about that!

I just checked. The standard green ones are out of stock, true. But the white DR ones are available. I just removed the green out of stock from the listing. - Thanks for letting me know.
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