Telephonics RT-1601, Практики обслуживания

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3-10 TM109902 (5/03)
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Table 3-2.
NPN Transistor Testing Procedure
OHMMETER CONNECTIONS
CHECK N0. BASE COLLECTOR EMITTER RANGE RELATIVE RESISTANCE
1 + – RX100 or
RX1,000
Low (1,000 ohms or less)
2 – + RX10,000 High (100,000 ohms or more)
3 + – RX10,000 High (100,000 ohms or more)
4 – + RX10,000 High (100,000 ohms or more)
5 + – RX100 or
RX1,000
Low (1,000 ohms or less)
6 – + RX10,000 High (100,000 ohms or more)
7
Connect base
to collector
+ – RX100 or
RX1,000
Resistance should decrease from
that obtained in check 3.
8
Connect base
to emitter
+ – RX10,000 High (100,000 ohms or more)
Table 3-3.
Transistors and Base Configurations
TRANSISTOR
TELEPHONICS
PART N0.
VENDOR
TYPE NO.
BASE
CONFIGURATION
(FIGURE 3-1) NOTE
12044-0009 2N5192 Q62 NPN, power, silicon
12044-0048 ZN6043 T61 NPN, power, silicon
12044-0054 MJE182 T41 NPN, power, silicon
12044-0065 D44HIl T61 NPN, power, bipolar
12047-0070 2N918 T30 NPN, silicon
12047-0075 MRF502 T30 NPN, silicon
12047-0078 2N2897 T23 NPN, silicon
12047-0095 MPS-A06 T2 NPN, silicon
12048-0047 MPSA56 T2 PNP, silicon
12050-0003 2N4092 T66 FET, silicon, N-channel
12051-0001 2N708 T23 Switching, silicon
12051-0003 2N2222A T23 Switching, silicon
12051-0009 2N2907A T23 Switching, silicon
12064-0001 K6001 T30 RF, low noise
12074-0003 MJ11014 T49 Power, Darlington
14006-0021 2N6405 T44 SCR
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