Description Geiger-Muller Tube Holder, for use with Edulab Scaler Timer (code: 281-006). An aluminum box which houses the G.M. tube socket. Connection is through a 1m long co-axial connecting lead, terminated in a standard P.E.T. connector. A 2.2MΩstabilizing resistor is internally wired in series with the anode connection. ( 281-013 )
