2 layers187.5 × 45 mm

Gamma spectrometer
Motokichirou/gamma-spectrometer
NaI(Tl) gamma spectrometer: STM32G474 + R1307 PMT + 4-board stack, KiCad schematics, LTspice simulations
231 parts
Boards in 1 GitHub repository, designed in KiCad, that use the REF35250QDBVRQ1 by Texas Instruments (SOT-23-6 Voltage Reference ROHS). See how each wires it, with its parts, size, README and files; the REF35250QDBVRQ1’s symbol, footprint and pinout are on its own page.

Motokichirou/gamma-spectrometer
NaI(Tl) gamma spectrometer: STM32G474 + R1307 PMT + 4-board stack, KiCad schematics, LTspice simulations