Preamp 4: 55Fe 'scope traces at lower voltage
From GlueXWiki
The pictures below show oscilloscope traces for gas mixture 50/50 Ar/CO2 and 55Fe source, all are shaper output.
Preamp 4 is described in GlueX-doc-1364, table 2, row 2; the 'old' preamp is the original one, GPC-01.
1850V, 55Fe source, old preamp (left) and preamp4 (right)
As above, for longer
1900V, 55Fe source, old preamp (left) and preamp4 (right)
As above, for longer
1950V, 55Fe source, old preamp (left) and preamp4 (right)
As above, for longer