HP AM-4380/U 5261A, Technical Manual, Page: 14 / 49

Model 5261A
Section V
Table 5-1
TABLE 5-1. Recommended Test Equipment
Instrument Type Required Use Instrument
Characteristics Recommended
Electronic Counter Provide power (hp) Model 5243L or
(hp) Model 5245L
DC Voltmeter
0 v to
±
25v;
Troubleshooting (hp) Model 412A
10 M
Ω
input impedance;
1% accuracy
AC Voltmeter 1 mv to 500 mv; Troubleshooting (hp) Model 403B
10 cps to 1 Mc; Circuit adjustment
2% accuracy
RF Millivoltmeter 1 mv to 500 mv; Troubleshooting; (hp) Model 411A with
500 kc to 50 Mc: Circuit adjustment (hp) 11025A Probe
3% accuracy (formerly (hp) 411A-21E)
Oscillator 10 cps to 100 kc; Troubleshooting; (hp) Model 200CD
1 mv to 500 mv Circuit adjustment
High Frequency 100 kc to 50 Mc: Troubleshooting; (hp) Model 606A
Signal Generator 1 mv- to 500 mv Circuit adjustment
Oscilloscope 10 cps to 10 Mc; Troubleshooting; (hp) Model 175A with
5 mv/cm (hp) Model 1752A
Coaxial Cable Low Microphonics Troubleshooting:; (hp) 10507A
Circuit adjustment;
Operation
Extender Cable 50-pin connectors; Permits operation (hp) 10506B
straight-through outside of counter
connections
Feed-through BNC to BNC; Troubleshooting: (hp) 10100A
Termination
50
Ω
Circuit adjustment (2 required)
DC Power Supply 100 vdc Performance Check (hp) 711A
5-0