HP 400D Operating And Servicing Manual page 10

Sect. Page 2
I
Model AC-60A Line Matching Transformer -
600 ohm unbalanced output, for measurements on
balanced lines.
Terminating Resistance:
600 ohms or 10, 000 ohms
Frequency Range:
5 kc to 600 kc
Power Handling Capacity:
+22 dbm (10 volts at 600 ohms)
Balance:
Better than 40 db, entire frequency range
Model AC-60B Line Bridging Transformer -
Provides balanced 600 ohm input to 600 ohm un­
balanced output, for measurements on balanced
lines.
Terminating Resistance:
600 ohms or 10, 000 ohms
Frequency Range:
CplS
to 45 kc
20
Power Handling C a pacity:
+15 dbm (4 . 5 volts at 600 ohms)
Model 452A Capacitive voltage Divider
Division ratio:
±3%
Accuracy:
Input Capacity: 151J1lf,
Maximum volt-
age rating: 6 0 cps
1 me
20 me
100 kc
1 0 mc
Model 454A Capacitive Voltage Divider
Division Ratio:
±3%
Accu racy :
Frequency Range: 20 cps to 4mc
Input Impedance: 50 megohns shunted with 2. 751J.IJ.f
Maximum Voltage: 1500 volts
Model 470A through 470F Shunt Resistors
These shunt resistors aaapt the voltmeter for meas­
uring curre:'l.ts as small as 1 microamp full sC
Accuracy: ±1% to 100 kc, 470A-F
±5% to
±5% to
Maximum power dissipation: 1 watt
Model
-=
470B 1. 0 ohms
470C ohms
10.0
470D 100. 0 ohms
470E 600.0 ohms
470F 1000. 0 ohms
l/lf.1f
±
25 kv
20 kv
7 kv
2 2 kv
15 kv
a.J.
e.
1
mc, 470A
4
mc, 470B-F
1 amp
300 ma
100 ma
41 ma
30 ma