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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
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Old 14th June 2019, 09:46 AM   #371
xrk971 is offline xrk971  United States
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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
The SLB SR would be a great MoFo power supply, or even an ACA power supply.
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Old 14th June 2019, 12:39 PM   #372
gary s is offline gary s  Australia
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I think it would really up the performance of the ACA over the SMPS supply.

I have an ACA in use at the moment but with a linear PSU to replace the SMPS for the 24VDC supply. On my list to try would be a single rail SLB to power the ACA - will have to get 1 or 2 of these from your Etsy store.

The improvement the regulated linear supply gave over the SMPS was amazing, so would be interesting to see what further improvement the SLB will bring.
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Old 14th June 2019, 10:06 PM   #373
Algar_emi is offline Algar_emi  Canada
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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
Added my name for the round 2 of the pcb (or rather added the board in my basket...)
SB
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Old 14th June 2019, 10:34 PM   #374
xrk971 is offline xrk971  United States
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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
GB2 interest list.

Quote:
analogdiy - 2 SLB - GB2
Bigaudioscotto - 2 SLB - GB2
Noviygera - 2 SLB - GB2
Asuslover - 1 SLB - GB2
Morde - 1 SLB - GB2
ppap64 - 6 SLB - GB2
axelcs -2 SLB - GB2
jameshunton - 2 SLB - GB2
80eengr - 2 SLB - GB2
douggoldberg - 1 SLB
sst4270 - 2 SLB
Algar_emi - 2(?) SLB
I think we have enough interest at this point for a GB2, please place a pre-order in my shop here. Make a note when you place your order what your DIYA handle is so that I can compare against this list. I would like to place the order for the boards soon.

Thanks,
X
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Last edited by xrk971; 14th June 2019 at 10:39 PM.
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Old 15th June 2019, 05:37 PM   #375
xrk971 is offline xrk971  United States
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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
GB2 status update:

Quote:
analogdiy - 2 SLB - GB2
Bigaudioscotto - 2 SLB - GB2
Noviygera - 2 SLB - GB2
Asuslover - 1 SLB - GB2
Morde - 1 SLB - GB2
ppap64 - 6 SLB - GB2 - Preorder Placed
axelcs -2 SLB - GB2
jameshunton - 2 SLB - GB2
80eengr - 2 SLB - GB2
douggoldberg - 1 SLB
sst4270 - 2 SLB
Algar_emi - 2 SLB
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Old 15th June 2019, 05:41 PM   #376
Morde is offline Morde  Finland
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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
Unfortunately I need to skip this one.

GB2 status:
analogdiy - 2 SLB - GB2
Bigaudioscotto - 2 SLB - GB2
Noviygera - 2 SLB - GB2
Asuslover - 1 SLB - GB

ppap64 - 6 SLB - GB2 - Preorder Placed
axelcs -2 SLB - GB2
jameshunton - 2 SLB - GB2
80eengr - 2 SLB - GB2
douggoldberg - 1 SLB
sst4270 - 2 SLB
Algar_emi - 2 SLB
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Old 16th June 2019, 07:45 AM   #377
Morde is offline Morde  Finland
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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
Mr. X got me convinced to stay on board.

analogdiy - 2 SLB - GB2
Bigaudioscotto - 2 SLB - GB2
Noviygera - 2 SLB - GB2
Asuslover - 1 SLB - GB2
Morde - 1 SLB - GB2 - Preorder Placed
ppap64 - 6 SLB - GB2 - Preorder Placed
axelcs -2 SLB - GB2
jameshunton - 2 SLB - GB2
80eengr - 2 SLB - GB2
douggoldberg - 1 SLB
sst4270 - 2 SLB
Algar_emi - 2 SLB
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Power amps: M2x, UDNeSS
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Old 16th June 2019, 08:09 AM   #378
808eengr is offline 808eengr
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Join Date: Feb 2019
analogdiy - 2 SLB - GB2
Bigaudioscotto - 2 SLB - GB2
Noviygera - 2 SLB - GB2
Asuslover - 1 SLB - GB2
Morde - 1 SLB - GB2 - Preorder Placed
ppap64 - 6 SLB - GB2 - Preorder Placed
axelcs -2 SLB - GB2
jameshunton - 2 SLB - GB2
80eengr - 2 SLB - GB2 - Preorder Placed
douggoldberg - 1 SLB
sst4270 - 2 SLB
Algar_emi - 2 SLB
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Old 16th June 2019, 08:12 AM   #379
xrk971 is offline xrk971  United States
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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
Hey guys, we just discovered a small error with the orientation of Q5, the BD139 used in the SLB SR board. Pin 1 is denoted by the square pad, this will have the part’s front side in contact with heatsink if you use the large Fischer style heatsink. This part really doesn’t need such a large heatsink and a small sheet metal stamped or C channel aluminum one would work fine. Small heatsinks like that can be flipped around to the “back” of the BD139. Alternatively, one can mount a BD139 with its front towards the heatsink. Make sure you use a non conductive shoulder washer or bushing on the mounting screw to prevent it from contacting the metal pad on the back of the BD139.

My apologies for not catching this earlier - but should not be a problem as long as you mount the part with pin 1 on the square pad.

The SLB dual rail does not have this issue.
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Old 16th June 2019, 11:06 AM   #380
gary s is offline gary s  Australia
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Hi X, thanks for the addendum re the small error on the SLB-SR PCB.

I will need a couple of these which I believe are available in your Etsy store now.

Can you point me to the single rail schematic, parts list or BOM and stuffing guide - are these in this thread or another one?
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