Micronta 22-025 - Operation

OPERATION
1. Set BASE CURRENT CONTROL knob to POWER TYPES.
2. Insert the transistor into socket or connect to Clips. Be sure
to connect Black to Emitter; Red to Collector and Green to
Base.
3. Set Function Switch to match the type of transistor under test
— either PNP or NPN. You can check any transistor from low
power type to high power type under this condition.
4. If the transistor has a current amplifying capability, the LED
will light. The lit LED means the transistor is not open or
shorted.
5. If the Function Switch is not set to the proper position (PNP
or NPN), the LED will not come on. In this case, recheck
transistor lead connections to see if this is the problem.
6. If the LED does not light even after you've double-checked
and reconnected clips, the transistor under test is bad (open or
shorted).
7. If you want to select transistors out of a group for maximum
gain, keep track of BASE CURRENT CONTROL settings
(where the LED turns on and off). Since a reading of “0” is
the maximum base current and “100” the minimum base
current, higher numbers mean greater gain. The same tech-
nigue can be used to select transistors with similar gain
characteristics.
8. When not in use, set Function Switch to OFF position.
TO CHECK “1М-СЇВСО!Т” TRANSISTORS
1. Turn off power to the unit in which the transistor is installed.
2. Set BASE CURRENT CONTROL knob to POWER TYPES.
3. Connect Clips to the transistor under test (in-circuit).
4. Flip Function Switch to either PNP or NPN to match the
transistor type.