Here it is, already with all components: For detailed photos from all PCBs and some from old good Fluke, just:
Author Archives: MJ
PCB on the way
This week JLCPCB produced my PCBs, and they are on the way to me. The total time from submitting files to “package shipped” was ~5 days. Because I ordered 3 different PCBs (also 3 different colors), I was interested, how long it takes to produce each color… So, I’ve made a graph, where you can …
PCB ordered
I decided to order multiple PCB, to save some shipping cost, and also to test some my ideas too… One of them – DC-DC push-pull converter on SN6505 to power up my VFD. I ordered some Epcos N87 rings, done some calculations in Lite-CalcIT, also researched some available info, and even found a nice book …
Playing with Fusion 360 (instead of designing electronics)
I have a problem. I already prepared things for Phono Preamp (filled shopping card on Digikey and uploaded gerbers to JLCPCB). But to save on delivery, I wanted to order more PCBs at once… So, I brought to life my old projects. Home audio system Badaboom. I already bought some nice neat VFD displays from …
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Phono Preamp
Finally, after long 8 years, I managed to repair my Revox B795. Interestingly, inside was enough place for a built-in Phono Preamp. I used design idea from Douglas Self (published in “Small Signal Audio Design 2010”), added LDO’s ±12V, used only THT components and high-quality parts, and finally ready to order the BOM and PCB.