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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 3rd June 2019, 08:32 PM   #301
ppap64 is offline ppap64  Canada
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**** GB2 Interest List *****

analogdiy - 2 SLB - GB2
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ppap64 - 6 SLB - GB2
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Old 4th June 2019, 05:42 PM   #302
slk23 is offline slk23  United States
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The Q10 transistor (Toshiba 2SA1943N(S1,E,S)) is out of stock at Mouser and Digikey. Is there an acceptable substitute? Would this work?

NJW0302G

The specs look similar although the "DC Current Gain hFE Max" is lower for the ON Semiconductor part.

And if changing Q10, would Q12 also be substituted?
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Old 4th June 2019, 06:23 PM   #303
xrk971 is offline xrk971  United States
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Join Date: Oct 2012
Location: Metro DC area
The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
Try TTA1943Q, same part basically. 327 in stock.

TTA1943(Q) Toshiba | Mouser

Fairchild's NJW's can work well too as long as similar Hfe and current rating. If Hfe s a bit lower, that means the ripple control will be a little less but it will still work quite well.

Q12 can be TTC5200Q:

TTC5200(Q) Toshiba | Mouser
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Last edited by xrk971; 4th June 2019 at 06:29 PM.
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Old 4th June 2019, 06:42 PM   #304
asuslover is offline asuslover  Romania
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can those transistors be replaced by mjl21193/94?or mjl4281/4302?
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Old 4th June 2019, 06:48 PM   #305
slk23 is offline slk23  United States
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Quote:
Originally Posted by xrk971 View Post
Try TTA1943Q, same part basically. 327 in stock.

TTA1943(Q) Toshiba | Mouser

Fairchild's NJW's can work well too as long as similar Hfe and current rating. If Hfe s a bit lower, that means the ripple control will be a little less but it will still work quite well.

Q12 can be TTC5200Q:

TTC5200(Q) Toshiba | Mouser
Thanks. Order placed and looking forward to putting the SLB PSU together this weekend.
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Old 5th June 2019, 01:39 AM   #306
md_Stryker is offline md_Stryker  United States
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Join Date: Jan 2006
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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
Here is a Mouser project based on the May 3 BOM with updates that can be used to create an order: Mouser Electronics

Enjoy,
-Michael
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Old 5th June 2019, 02:43 AM   #307
Vunce is offline Vunce  United States
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Join Date: Jan 2014
Location: LI, NY
The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
Parts lists are always a great help
Thanks Michael!!

Happy Building
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Old 5th June 2019, 03:20 PM   #308
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
md_Stryker,
Thanks for making the BOM/shopping cart for us. To folks wishing to use this BOM/shopping cart - please save as your own project before modifying it, else stuff gets deleted/changed for everyone clicking on this link.

For All,
As a validity check, the total BOM cost is $90.28. SO if that checksum doesn't pan out, you may need to review it carefully.

Thanks,
X
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Old 6th June 2019, 03:12 AM   #309
yoaudio is offline yoaudio  United States
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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
Boards received.

Thanks X
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Old 6th June 2019, 12:57 PM   #310
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
Glad to see the packages arriving. Let’s see who gets one up and running fastest.

My bet is on Vunce.
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