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Manual Documentation Number M3640D1598
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 433-5104
Notes:
•
dB(decibels) in the display indicates the Logarithmic ratio of input
voltage to the standard stored value.
•
During activation of dB measurement, the auto power off will not
work.
Table 4. Logorithmic ratio
INPUT VOLTAGE
DB
0.075 mV
-60 dB
109 mV
-17 dB
1.94 V
8 dB
19.40 V
28 dB
6-9. Checking Transistors
WARNING: The transistor socket is not protected against overload. You
can damage the meter and void your warranty if you build and use external
leads for the transistor socket.
Follow these steps to determine a transistor's base gain:
1. Rotate the rotary switch to the hFE positon.
2. Insert the transistor you want to measure into the appropriate transistor
socket. Your meter displays the transistor’s hFE value.
