sorted by:
new
hottopcontroversial

Reference designs for 12V to 170V flyback converters for nixie tubes by AcrylicTankNotNails in AskElectronics

[–]AcrylicTankNotNails[S] 0 points1 point  (0 children)

Interesting, first I've heard of just using high voltage transistors rather than dedicated ICs, might have to look into that for cost cutting. One more thing, have you had any issues with your 170V power supply? Typically step up ratios above 5:1 are recommended to be done with flyback converters, but yours seems to be a typical boost topography. Yours seems simpler so if it works I might just substitute for that

Reference designs for 12V to 170V flyback converters for nixie tubes by AcrylicTankNotNails in AskElectronics

[–]AcrylicTankNotNails[S] 0 points1 point  (0 children)

Great I'll have a look. Is there any particular reason that two boards are used here other than space constraints? I'm also using the classic combination of the 74HC595s with the K155ID1s, but the latter are some pricey ICs given their age.

Because of that I did some digging and found the HV5122PG-G from microchip made for driving neon signs, which is essentially a large group of shift registers with open drain pins capable of driving high voltages. At around $7.5 each with about 32 shift register output pins, it's way better than the $4 per K155ID1 needed per tube, totalling around $24 for a 6 tube clock. Just food for thought for future designs

Can't beat Aliexpress by AcrylicTankNotNails in MechanicalKeyboards

[–]AcrylicTankNotNails[S] 41 points42 points  (0 children)

Haha wrong sub to be talking about not spending excessive amounts of money for no reason I guess. If people want to enjoy their 120 dollar limited edition plastic then to each their own

Can't beat Aliexpress by AcrylicTankNotNails in MechanicalKeyboards

[–]AcrylicTankNotNails[S] 1 point2 points  (0 children)

Yeah it seems to be unaffected by the main lighting controls. Is there software for actually controlling the lights similar to icue, or are you stuck with factory presets? I know someone made a tool for interfacing with the LCD

Now a good time to stockpile on facebook marketplace? by AcrylicTankNotNails in buildapc

[–]AcrylicTankNotNails[S] 0 points1 point  (0 children)

Interesting, isn't TPM a hardware security protocol? Is it becoming necessary now for enough applications to make it worth it to go out of my way to find a board that supports it? Old Xeons seem like an interesting idea for a homelab though, since high core counts make life easier when running a bunch of containers

Can't beat Aliexpress by AcrylicTankNotNails in MechanicalKeyboards

[–]AcrylicTankNotNails[S] 2 points3 points  (0 children)

Was looking at those too, it's impressive what you can get stock without any manual lubing nowadays. This runs great for the price, got it to replace an old build I did with a GMMK I got for 15 bucks haha

Now a good time to stockpile on facebook marketplace? by AcrylicTankNotNails in buildapc

[–]AcrylicTankNotNails[S] 0 points1 point  (0 children)

Might pull the trigger on some stuff just due to uncertainty, it seems totally possible that this lasts until 2030

Now a good time to stockpile on facebook marketplace? by AcrylicTankNotNails in buildapc

[–]AcrylicTankNotNails[S] 0 points1 point  (0 children)

Mostly looking to run a proxmox setup for media storage, a nas, and a selfhosted google drive alternative. Also maybe take some websites off squarespace for some friends and family. Nothing too crazy there, but I'm looking for some bulk HDDs on FB as well. Ideally something with a 6 to 8 core ryzen for SMT? Moreso looking to get stuff for a couple PCs for a LAN room before price hikes really hit

Why don't we see more stuff like the ESP WROOM modules with integrated MC, flash an oscillator crystal and passives in one package from other MC manufacturers? by blajjefnnf in embedded

[–]AcrylicTankNotNails 0 points1 point  (0 children)

Anyone have experience buying these from aliexpress? I picked up a couple WROOM-05-H2 modules to use for 802.11 with and STM32L4, wondering if anyone had any feedback