DIY Geigercounter - Radium Clock & Uranium Glass

[Grdener89]

Hello

I want to build a similar geiger counter with a SBM-20 geiger tube. Where can i find the schematic, and what kind of capacitors (red cubes) there on the first picture?

Thanks!

[phikre]

@Grdener89 I already posted the schematics in another comment, you only need to search a bit.

[iHDediting]

Geiger Müller-Rohre? is this german?

[phikre]

@iHDediting It's the LND712. And German.

[phikre]

@cb321o W W W (dot) techlib (dot) com/science/geiger.html#Reader­s%20Versions

3. Schaltplan von oben, dere Teil unter dem Schriftzug ''Typical Geiger-counter circuit'' ist die Ausleseelektronik mit Anzeige ;)