 Comparison old preAmp now(bottom) and 1.5 years ago(top) |
Conclusion: the old preAmp is fine.
Let compare to the new preamp at full range:
 New preAmp Fe-55 90/10 gas, 1450V, full ADC range (ch 4096 = +- 1V) |
and at half range:
 New preAmp Fe-55 90/10 gas, 1450V, half ADC range (ch 4096 = +- 0.5V) |
