Question:

What are the retrofit kits for the 8566/8567/8568 
spectrum analyzers?

Answer:

Kits common to standard 8566A/B, 8567A, 8568A/B 

CRT Retrofit Kit 
p/n 85662-60238 (installation time: 4 hrs.) 

Log Board Set (provides matched A4A3/A4A2) 
p/n 85662-60096 (installation time: 1.5 hrs.) 

Bandwidth Filter Assy Set (provides matched A4A4/A4A8) 
p/n 85662-60112 (installation time: 1 hr) 

IF section Fan Assembly Replacement Kit- 85662A prefix 
2848A and below. 50-60 Hz 
p/n 85662-60243 (installation time: 30 minutes) 

IF section Fan Motor- 85662A prefix 3001A and above, or 
early instruments which have had 85662-60243 Fan 

Assembly Retrofit Kit installed. 50-60 Hz 
p/n 85662-60219 (installation time: 45 minutes) 

8566A Specific 

RF section Fan Motor Replacement Kit. 50-60 Hz 
p/n 85660-60387 (installation time: 45 minutes) 

8566B Specific 

6dB BW Retrofit Kit (Opt 462 upgrade from std 3dB RBW) 
p/n 08566-60016 (installation time: 2 hrs.) 

Impulse BW to 6dB BW Retrofit Kit 
p/n 08566-60017 (installation time: 1.5 hrs.) 

Option 462 Matched Bandwidth Boards 
p/n 85662-60199 (installation time: 1 hr.) 

RF Attenuator Retrofit Kit (8566A/8566B) 
p/n 5062-6644 (installation time: 1 hr.) 

Firmware Replacement Kit (installs current FW date code 
10.10.89) 
p/n 85660-60270 (installation time: 30 minutes) 

RF section Fan Motor Replacement Kit. 50-60 Hz 
p/n 85660-60387 (installation time: 45 minutes) 

85662A and 85650A Amplitude Accuracy Retrofit Kit. Used 
if EMI system does not meet 2 dB absolute amplitude 
spec. 
p/n 85650-60079 (installation time: 1 hr.) 

8567A Specific 

Firmware Replacement Kit (installs current FW date code 
7.4.87) 
p/n 85670-60009 (installation time: 30 minutes) 

RF Section Fan Assembly Replacement Kit s/n prefix 2926A 
and below. 50-60 Hz 
p/n 85660-60358 (installation time: 30 minutes) 

RF section Fan Motor Replacement Kit for 85670A, 
85680A/B instruments which have had 85660-60358 Fan 

Assembly Replacement Kit installed. 
p/n 85660-60387 (installation time: 45 minutes) 

8568A Specific 

RF Section Fan Assembly Replacement Kit s/n prefix 2840A 
and below. 50-60 Hz 
p/n 85660-60358 (installation time: 30 minutes) 

RF section Fan Motor Replacement Kit for 85680A/B, 

85670A instruments which have had 85660-60358 Fan 
Assembly Replacement Kit installed. 50-60 Hz 
p/n 85660-60387 (installation time: 45 minutes) 

400 Hz Fan Assembly Replacement Kit for RF sections 
which have early 400 Hz fan installed (serial prefix 
2840A and below). 
p/n 85660-60359 (installation time: 30 minutes) 

8568B Specific 

6dB BW Retrofit Kit (Opt 462 upgrade from std 3dB RBW) 
p/n 08568-60126 

Impulse BW to 6dB BW Retrofit Kit 
p/n 08568-60127 

Option 462 Matched Bandwidth Boards 
p/n 85662-60199 (installation time: 1 hr.) 

RF Attenuator Retrofit Kit (8568A/8568B) 
p/n 5062-6643 

Firmware Replacement Kit (installs current FW date code 
7.4.87) 
p/n 85680-60197 

RF Section Fan Assembly Replacement Kit s/n prefix 2828A 
and below. 50-60 Hz 
p/n 85660-60358 (installation time: 30 minutes) 

RF section Fan Motor Replacement Kit for 85680A/B, 
85670A instruments which have had 85660-60358 Fan 

Assembly Replacement Kit installed. 
p/n 85660-60387 (installation time: 45 minutes) 
400 Hz Fan Assembly Replacement Kit for RF sections 
which have early 400 Hz fan installed (serial prefix 
2840A and below). 
p/n 85660-60359 (installation time: 30 minutes)