Quantity   Component name
1 × Teensy 4.1
4 × IN-12 Nixie Numeric Tubes
1 × IN-15 Nixie Symbol Tube
1 × Mighty Ohm Geiger Counter I chose the w/ tube, and w/o case - https://mightyohm.com/blog/products/geiger-counter/
1 × Radioactive Source - I choose Geiger Counter Test Card https://unitednuclear.com/index.php?main_page=product_info&products_id=1005
5 × NixieTester Drivers v1 https://nixietester.com/product/nixie-tube-driver/
7 × 33k Ohm Resistors https://www.amazon.com/dp/B07GTS9DBQ?psc=1&ref=ppx_yo2ov_dt_b_product_details
1 × 12v/5/v Meanwell Power Supply https://www.amazon.com/dp/B00FRBN2CK?psc=1&ref=ppx_yo2ov_dt_b_product_details
3 × MPSA42 Transistors Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs for Driving the Dot Indicators
3 × Nixie Dot Indicator https://www.amazon.com/dp/B07QMGRT43?psc=1&ref=ppx_yo2ov_dt_b_product_details
1 × High Voltage Power Supply 12v to 220v I can't seem to find where I got mine
1 × Uranium Glass Marble
3 × UV LEDs https://www.amazon.com/dp/B01ENC1X2Y?psc=1&ref=ppx_yo2ov_dt_b_product_details
1 × 2N2222 Transistor For driving the LEDs
4 × KY-040 Encoder