New HVB

Scope traces for premixed 50/50 Ar/CO₂

Fe55 at 2100V (50mV/div 100ns/div)

Cosmics at 2100V (50mV/div 100ns/div)

Max amplitude histograms for cosmics at 2100V with 50/50 Ar/CO₂
Left: new preamp and new HVB, right: old preamp and HVB
Purple: untracked, blue: tracked (less of this with old preamp because of 2 dead central channels)

New preamp and HVB - max amplitude histo for cosmics at 2100V

Old preamp and HVB - max amplitude histo for cosmics at 2100V