b.
Leakage of tar-like substance from headset jack,
resulting in shorts across the printed circuit board
underneath calibration potentiometer.
c.
Substandard printed circuit board with difficulties
in unsoldering and resoldering component connections such as tubes, capacitors, resistors, etc,
d.
2.4.5
Calibration drift over a period of a few days.
Integrons
The Integrons were not used to a large extent,
They calibrated
and checked easily, and were relatively rugged.
2.4.6 Thyac
The Thyac alpha scintillation survey meter was gamma responsive
in a radiation field above 500 mr/hr.
However, for normal personnel or
equipment monitoring, the instrument worked adequately,
2.4.7
MX-5
The Beckman MX-5 beta-gamma low range personnel monitoring
instrument performed very well, though many were not used due to the
lack of spare parts,
was easy to calibrate.
2,4,.8
The instrument was rugged, had good stability and
This instrument is no longer in production,
PAC-3-G
The Eberline PAC-3-G alpha proportional survey meter was an
adequate monitoring instrument but required a daily check-out and readjustment of the gas-flow system.
damaged in the field.
The probe assembly was easily
However, if the monitor utilizing the instrument
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