Tektronix PG 501 Instruction Manual page 26

Selects pulse periods from
fens
than
20 ns
(uncali-
brated) to 20 ms in 7 de-
cade
steps .
Mechanically
coupled
to
DURATION
selector so the period is
always greater
than the
duration when both VAR1
VARIABLE (Period)
ABLE controls are in the
Control
X1
position . Also selects
external trigger mode .
Provides continuously vari "
able
selection
of
pulse
period
between calibrated
steps, Extends period to at
least 0:25
10X PERIOD
selector
switch setting in
the fully
ew ( = X
10)
position .
OUTPUT AMPLITUDE
Controls
Provide independent ampli-
tude adjustment of nega-
tive
and
positive output
pulses from less than 0 .5 V
to 5 V.
Also
control the
DC
level at the output con-
vectors and at the inteinal
amplitude monitor line
(pin
25A
on rear
connector)
when
the
DURATION
selector is in the OUTPUT
LOCKED QN position .
CONTROLS AND CONNECTORS
TRIG/DURATION iN
Connector
REV . C MAY 197 7
PERIOD Selector
Permits external triggering
'
_LW
t'-'e svt!+tvo
P?
att!KSCaact
of
the period generatoror
f
~tumw ?t aa!r~uT
:Y?0 Sli DeAF-
when the
PERIOD select
~--_--____- .
is in the EXT TRIG
Posi-
tion, A positive signal of at
least 1 V wil" trigger one ~ ?fiIG~UURATIOW IPo
TgiG OUT
pulse cycle from the period
TRiG OUT Connector
generator. Gated pulse ottt-
Pflitl ;
i1-06
put is provided when the `~),
Provides a po5ltrve output
tor !s m
~"""!l pulse of at least 1
V
into
pURATION selec 50
<_S .
Pulse occurs at least
the EXT DURATION posi-
i; ; :, :
10 ns prior to thF
p~.0se
tion .
An
external DC- ~ ''~ -'rti' -
output
at the
+ and
coupled Satiny
signal ap-
output contTectors
output
plied
to the
TRIG%
re
10X DURATION IN connector ~n ; ^r
r the
will enable tire period yen-
loscope .
erator for the duration of
IUTPUT
the
input
gatiny
signal .
roi for a
ampii-
Output starts before the
wput gate
amplitude
(- Out-
reaches +1 V and continues
1
for
' until yate amplitude drops
ions on
below the reset level (never
Ise at a
leis than +104
!any -
/din .
rtKraoNrx .
DURATION Selector
Selects pulse duration from
less
than
10 ns
(uncali-
brated) to 10 ms in 7 de-
cade
steps.
Mechanically
coupled to PERIOD selec-
tor
so the
duration
is
always less than the period
when
both VARIABLE
controls are in the X1
position . Also selects out-
put locked on and external
duration modes-
POWER Indicator
Liyhts
vJhen power
app)ied to.tte PG 501 .
1361-07
VARIABLE Iburation)
Control
Output Connectors
PG 501
Provides continuously van-
able
selection
of
pulse
duration
between
cali-
brated
steps . Extends
duration to at least 0.1 s in
the fully cw (- X101 posi-
tion .
Provide simultaneous nega-
tive and positive pulse out-
puts .
Outputs
are
pro-
tected
against
no
load,
shorting, or inductive load
cored loons .