> On Feb 22, 2020, at 7:14 AM, wyager <[email protected]> wrote: > > Hello all, > > I recently finished working on a spectrum analyzer music visualizer based on > IN-13 tubes. Full writeup (with some nice pictures and videos) at > https://yager.io/vumeter/vu.html .
Cool. How many IN-13s did you have to buy to get sixteen that actually worked properly? How many duds were there? What special tricks did you have to implement in software to get the GOOD ones to behave? I've read that they need to be strobed at say 50Hz. More info would be very welcome. > On Feb 23, 2020, at 1:33 PM, SWISSNIXIE - Jonathan F. <[email protected]> > wrote: > > Holy Moly! Thats alot of IC's and potentiometers! Lovely, but amazing to see > that all of them could fit inside a tiny package mcu Heh. I still have to assemble the tortugascuba thermometer. All discrete and SSI/MSI logic etc. Terry Bowman, KA4HJH "The Mac Doctor" https://www.astarcloseup.com/ “The book said something astonishing, a very big thought. It said that the stars were suns, only very far away. The Sun was a star, but close up.”—Carl Sagan, Cosmos, 1980 -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/4A475BF3-A8AF-4CF2-9314-35CE567B4FBB%40gmail.com.
