Eberline E-520 - Page 11

MODEL E-520
v2
2000 mR/hr
ONLY
DETECTOR
OSCILLATOR STEP-UP
& o—» EXTERNAL GEIGER TUBE
al RECTIFIER
T1, CR3 S1A
AMPLIFIER
02, Q3
REFERENCE
V1
PHONE DRIVER
07 PHONE
p——-—----
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|
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L.
PULSE
AMPLIFIER TRIGGER METER DRIVER
Q4, Q5, O6 A1 08
SCALE SWITCH
& RESPONSE
CALIBRATION R27
CONTROLS
Figure 3-1. System Block Diagram
ORIGINAL