3 ms·
> There seem to be builds using a through hole resistor for R3 That's the "electron-detector" version, which uses a 10M feedback resistor. The alpha-spectromet
by ajnin 6y ago
> There seem to be builds using a through hole resistor for R3
That's the "electron-detector" version, which uses a 10M feedback resistor. The alpha-spectrometer version is the one that uses the 40M SMD resistor.
- new299 6y agoI don’t think that makes much of a difference to the part selection (it’s the same board). If you look at the schematics they say you can use either through hole or SMD. SMD is preferred: https://github.com/ozel/DIY_particle_detector/blob/master/hardware/V1.2/documentation/DIY%20particle%20detector%20schematic%20v1-2.pdf https://github.com/ozel/DIY_particle_detector/blob/master/ha...