CD
FREQUENCY D ial : Varie s output frequency w ith in
each frequency range. D ial reading multipl ied by range
sett ing is the output frequency of the in strument.
CD
FREQUENCY RAN GE Switch (Sl ): Select s one of six
frequency range s. from 1 0 Hz to
I
MHz.
CD
Output Mon itor (M I): Mon itor s the ampl itude of the
te st o sc illator output. May be u sed to set and ma inta in
an
output ampl itude reference, when the MONITOR
sw itch is in the EXPAND po sit ion.
CD
Mechan ical Zero Adjust : Allow s output mon itor to be
mechan ically zeroed, when in strument is off.
CD
MONITOR Switch (S4): Expand s top 10% of mon itor
scale, to allow an ampl itude reference to be set .
CD
REF SET Coarse and VERNIER Controls: Adju st s
mon itor to de sired reference sett ing.
®
FREQUENCY VERNIER : Pro vide s a fine frequency
adju stment for FREQUENCY d ial.
®
LINE ON Sw itch (S3) and P ilot Lamp : Switch appl ie s
pr imary power to in strument; p ilot lamp glo w s to
ind icate appl ication of pr imary power.
®
INDICATOR LIGHT: Glows when power sw itch is set
to "L1NE".
@
1 1 5/230 V Slide Switch (S5) : Set s in strument to
operate from a pr imary power source of e ither 1 1 5 Vac
or 230 Vae.
CD
OUTPUT ATTENUATOR: Attenuate s
output in n ine step s of 10 dB each.
te st o sc illator
®
FUSE (FI): 0.4 amp fu se protect s in strument from
overload s.
CD
Output Connector s ( 12 and
B):
Provide s the output
Signal, at impedance leve l s of 50 ohms and 600 ohm s.
CD
AMPLITUDE Coar se and VERNIER Controls: Control s
ampl it ude o f Signal a ppl ie d to OUTPUT
ATTENUATOR.
@
Pr imary Power Connector (J I ) : Connect s pr imary
power to te st o sc illator.
®
IDENTIFICATION P LATE: Show s in strument ser ial
number.
17
POWER TRANSFORMER (TI ) .
Figure
3-1.
Location and Description of Controls and Indicators
3-2
Sf'.dion lIT
Model 652A