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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 18th April 2019, 08:39 AM   #51
jameshillj is offline jameshillj  Australia
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Oops, my apologies, sorry.
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Old 20th April 2019, 09:07 PM   #52
prasi is offline prasi  India
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The SLB (Smooth Like Butter) Active Rect/CRC/Cap Mx Class A Power Supply GB
Quote:
Originally Posted by xrk971 View Post
Sorry, don’t understand what you are asking about donuts and caddocks?
James is probably talking about adding pads (donuts) for Caddock resistors.
MP930-0.10-1% Caddock | Mouser India

30W in TO-247. Since the resistors are nearly at the extreme edges of the PCB, it might be convenient to locate TO-247 resistors so that they can be mounted flat horizontally on the bottom Aluminium plate or some heatsink, etc.. Just an an option....

Also , if the space permits, Dayton and HTR have non-inductive 10W resistors in 10mm wide x 50 mm long package . These can be paralled one on top of another for 20W capability with adequate space in between. Holes below these also help with cooling.
Here is what I did for my Tarkus X-over.

just 2c.

regards
Prasi
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Last edited by prasi; 20th April 2019 at 09:14 PM.
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Old 25th April 2019, 01:15 AM   #53
gary s is offline gary s  Australia
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Hi x, just an update - have you received the verification boards yet and I assume this project will still be a GB for all.
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Old 25th April 2019, 01:40 AM   #54
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
They shipped from board fab house 2 days ago, I won't get for maybe 4 more days. The GB is still a go of course. Once I verify that this layout works and there are no mistakes, I will order the production boards. It takes more time and work this way, but in the long run is much better for people building it to make sure it is frustration free.
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Old 25th April 2019, 02:00 AM   #55
gary s is offline gary s  Australia
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Thanks for the update X, appreciated. I am in for at least 2 off.
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Old 25th April 2019, 05:47 AM   #56
nautibuoy is offline nautibuoy  United Kingdom
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Is it possible to get hold of some single rail boards?
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Old 25th April 2019, 10:41 AM   #57
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 single rail boards were part of an integrated amplifier that is not public release. Maybe Jhofland could make one of these is enough interest.
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Old 25th April 2019, 09:27 PM   #58
nautibuoy is offline nautibuoy  United Kingdom
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Quote:
Originally Posted by xrk971 View Post
The single rail boards were part of an integrated amplifier that is not public release. Maybe Jhofland could make one of these is enough interest.

Thanks for replying. Some single positive rail boards would be good to try in my MoFo project if some could be made available (even gerbers so I could get some boards fabricated)?



I would also like to add my name to the GB list for the dual rail boards (2 boards).
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Old 25th April 2019, 10:03 PM   #59
antoniopf1972 is offline antoniopf1972  Spain
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If it works well with the Alpha BB. I want two plates. If you could order. Thank you.
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Old 26th April 2019, 03:39 AM   #60
gary s is offline gary s  Australia
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SLB Group Buy List:

baswamin - 2 boards
meanie - 2 boards
jwjarch - 2 boards
gary s - 2 boards
nautibuoy - 2 boards
antoniopf1972 - 2 boards

Total = 12 boards.

List updated.
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