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

Hi Studley,
If you ordered the old version (they were discounted) then you can use a small stamped aluminum heatsink like this. No need to use the big Fischer ones that are massive and extruded construction. Not that much dissipation here.



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Hi X,

Not sure if I have missed this in the thread somewhere, can you give a quick guide as to setting (adjusting) the 200ohm pots RV1 and RV2 on the dual SLB board thanks.

Kind regards,
Gary.
Posts 1484 to 1488. In summary, there is not much of a voltage change at all, perhaps 1-1.5 volts. What you want to do is adjust it for lowest ripple on a scope, while having it connected to the load you desire and set it there.

Best,
Anand.
 
These R17, R18 resistors are burnt again.

I had successfully get about +/- 27 VDC from this SLB before.
I didn't have any errors and problems.

I have some burnt R17, R18 resistors after I tried putting it in my wooden case.


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I guess .. maybe the length of the flying lead wires are not enough long, so lead wires have been tighten sometimes and minifit connection became loose.

I have made using 18awg wire, so some pins of the connector have not been inserted deeply.

I will make long enough length flying leads again, and try again.
 
“I have some burnt R17, R18 resistors after I tried putting it in my wooden case.”

With all due respect, and I do not mean to offend, but this case solution is an unsafe, disastrous train wreck! I’m all for DIY creativity and thinking outside the ‘box’ but safety needs to be taken seriously.
Build your external SLB power supply in a proper chassis.
 
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