Tektronix 576 - Page 39

IF
and VF
I
R
an d V R
SIGNAL DIODES AND RECTIFYING
DIODES
R equire d Ty p e 576 Control Settings
ENOMEMEMON
ιιιιιιιΝιιιιι
ιιιιΜιιι R ι
ONNNEEMENN
MENNEENNON
EMENEEMENE
NEENEENEEN
EMENEENNON
MENEEMEMON
1 F
Vs-
V F
PERΗ
ρ

f~i i
c
2
DN
5Λ
Some Common
M easurements
To measure forwar d
current
and
voltage, put the cathod e of the d io de in the emitter
terminal of the test socket and t he
anode of the d io de in t he collector terminal . Apply
voltage to the d evice with
t he
V
ARIABLE COLLECTOR S UPPLY control .
Current and voltage in t he
reverse direction are measured in t he same manner as in the
forward d irection except that the P OLARITY switch is set to -( ΡΝΡ
) . F or measurements
of small amounts of
reverse current, set the M ODE switch to LEAKAGE (EMITTER
C URRENT) .
ZEN ER
DIODES
R eq uired Type 576 Control
Settings
Operating Instructions-Type 576
2- 3 1
Control R equired
Setting
H ORIZONTAL
COLLECTOR
PEAK P OWER
WATTS L ess than maximum p ower
rating
of
device
POLARITY +(NPN)
Terminal Selector
EMITTER G ROUNDED
Control
F
R
equired Setting
H ORIZONTAL COLLECTOR
PEAK P
OWER WATTS L ess than
maximum p ower rating of d evice
P OLARITY
-( ΡΝΡ
)
Terminal Selector
EMITTER G ROUNDED