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Yes, I've had some really crappy ones too. You take your chances on surplus and bargain bin stuff. If a deal looks too good to be true, it probably is.
The specific supply I referenced in the article is very quiet in this circuit.
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Thanks Vunce. The heatsinks came from China, only 15usd each, the gotcha was the shipping. Total for both was about 100usd. The ones Michael used, I believe are about 65usd plus shipping, so some savings there. All sides will be wood. The bottom is 5/8" ply and the remaining sides will be stained 1/8" (3mm) ply. Per your suggestion of venting in the top, I am going with a brass screen inset from McMaster-Carr.
Eric, that is extruded aluminium stock that you can buy from a number of sources around the world. 8020, T-Slots, Parker, Bosch, FrameWorld, MainFrame, Maytec, T-Nutz.
I have used both 8020 and T-nutz on other projects. 8020 has an Ebay store with items a bit less than their regular prices. T-nutz is even less expensive with fewer choices, but they offer precut pieces.
The frame in my photos is all T-Nutz 12" pieces, except for the four vertical pieces which I cut from some 12" ones. All of the hardware came from T-Nutz and McMaster-Carr.
More photos to follow as move towards completion.
Thanks
David
Eric, that is extruded aluminium stock that you can buy from a number of sources around the world. 8020, T-Slots, Parker, Bosch, FrameWorld, MainFrame, Maytec, T-Nutz.
I have used both 8020 and T-nutz on other projects. 8020 has an Ebay store with items a bit less than their regular prices. T-nutz is even less expensive with fewer choices, but they offer precut pieces.
The frame in my photos is all T-Nutz 12" pieces, except for the four vertical pieces which I cut from some 12" ones. All of the hardware came from T-Nutz and McMaster-Carr.
More photos to follow as move towards completion.
Thanks
David
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Hi Eric,
I’m using these for my MoFo and they work very well, noise free
Regards,
Vunce
Mean Well# GS120A24-P1M.
Input: 100-240 Vac, 50/60 Hz, 1.4A.
Output: 24V, 5A, 120W max.
Table-top style switching supply, 6.50" x 2.60" x 1.38". 4' output cable with ferrite noise suppression bead and 2.5mm plug, center positive. Detachable 3-conductor power cord. CE, TUV, cULus.
Hi Mike,
My point is very simple. I was mainly making a joke at my lack of knowledge.
I thought I bought a bad smps, because I don't know thedifference from a good one or bad one. Then, I realized the article's recommended smps is a Mean Well. I bought a Mean Well power supply too (a cage version). So, I might be in good shape as far as quality of smps go.
If I recall, the article mentioned the circuit naturally rejects PS noise anyway? Sounds good to me...
I'm honestly sorry that I don't get my point across well sometimes and causes people confusion and/or angst.
That's it; that's all. Nothing more. It's all good.
thanks,
Vince
My point is very simple. I was mainly making a joke at my lack of knowledge.
I thought I bought a bad smps, because I don't know thedifference from a good one or bad one. Then, I realized the article's recommended smps is a Mean Well. I bought a Mean Well power supply too (a cage version). So, I might be in good shape as far as quality of smps go.
If I recall, the article mentioned the circuit naturally rejects PS noise anyway? Sounds good to me...
I'm honestly sorry that I don't get my point across well sometimes and causes people confusion and/or angst.
That's it; that's all. Nothing more. It's all good.
thanks,
Vince
I've got a pair on the bench to test. I'll keep you posted.
Hi Michael,
Did you get a chance to play around with the Lundahl chokes?
Regards,
Vunce
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I’m using these for my MoFo and they work very well, noise free
Regards,
Vunce
Good to have some input on one that works well - thanks for the details!