Tektronix 502 series, Инструкция по эксплуатации

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ACCESSORIES
O p e ra tio n a l Accessories
PROBES
P400-Series Low-Capacitance Probes— This series of
low-capacitance probes preserves the transient response
of Tektronix fast-rise instruments. The P400-Series probes
are free of overshoot and ringing and have relatively
uniform high-frequency response. With exception of the
P450-L, these probes can be used on other instruments
having input capacitances from 20 to 50 /x/xf. General
physical characteristics of the P400-Series probe are
identical to the P510A probe. Color-coding of the plastic
nose indicates attenuation ratio. Probes have 4 2 " cable
with coaxial connector and are rated at 600 v peak-to-
peak. Two interchangeable Tektips— a straight tip and a
hooked tip— each adding less than 0.5
ju/uf
to the input
capacitance, and an alligator clip assembly are supplied
with the probes.
P405, P410, P420 .................................................. 10.50
P450, P450-L, P 4 1 0 0 ........................................... 12.50
Replacement Tektips, each ........................................25
P400-SERIES PROBE SPECIFICATION
INPUT IMPEDANCE
Probe
Attenuation
Ratio
Resistance
(Megohms)
Capacitance DB Loss
M inim um * M axim um f at 30 MC
P405 5:1 5 1 2
ppi 19 ppi 1-2
P410 10:1 10 8
ppi
1 1
ppi
1
P420 20:1 10 5.5 ppf
7 fifii
1
P450 50:1 10 3 .5
ppi
3.5
fifii
1
P450-L 50:1 10 2.5
pp
f
1
P 4100 100:1 10 2.5 pp f 2.5
fifii
1
"W hen connected to instruments with 20-fifii input capacitance.
fW h e n connected to instruments with input capacitances up to 5 0 ppi.
P510A Attenuator Probe provides an attenuation of
ten times when used with Tektronix oscilloscopes and am­
plifiers. The P510A is small and streamlined, and pre­
sents an input impedance of
1 0
megohms paralleled by
1 4 /x/xf. The probe is completely insulated — made of
high-impact-strength fiberglass-reinforced alkyd — and
has an internal brass shield. Two interchangeable Tek­
tips— a straight tip and a hooked tip, and an alligator clip
assembly are furnished. Probe has a 4 2 " cable with co­
axial connector, and is rated at 600 v peak-to-peak .
P 5 1 0 A ............................................................................... 8.50
P170CF Cathode Follower Probe was developed for
use with the Type 517 Oscilloscope. The cathode-fol­
lower tube is a 5718 triode whose cathode load is the
170-ohm termination of the preamplifier grid line in the
Type 517. Plate and heater voltages for this tube are
provided at a four-terminal socket on the panel of the
oscilloscope. The signal is attenuated by 2 times when
using the P170CF. The input impedance of the probe
will depend on the attenuator head being used, also
since transit time in the cathode-follower tube is involv­
ed, it will decrease appreciably at the higher frequen­
cies. When the probe is used without an attenuator
head, the input looks like 12 megohms shunted by 5 /x/xf.
The probe cable is 42 " long. Probe complete with 3 a t­
tenuator h e a d s ............................................................
8 6 . 0 0
REPLACEMENT ATTENUATOR HEADS
PAX-1 Attenuator Head for P170CF, attenuation can
be varied between 4 times and 40 times............... 11.00
PAX-II Attenuator Head for P170CF, attenuation can
be varied between
2 0
times and
2 0 0
times..........
1 1 . 0 0
PAX-III Attenuator Head for P170CF, attenuation can
be varied between
2 0 0
times and
2 0 0 0
times. . . .
1 1 . 0 0
P170CF can be used with the Type 513 Oscilloscope,
but low-frequency response will suffer somewhat, de­
pending on the attenuator head being used. It is neces­
sary to terminate the 170-ohm cable at the oscilloscope
input. B170R terminating resistor is designed for this.
(See terminations.) A rectifier kit, KP170CF, is recom­
mended for installation in Type 513 to rectify the 6.3
volt heater supply.
KP170CF DC Filament Kit for Type 5 1 3 ................. 4.5 0
A -6 T e k t r o n i x , In c ,