E8257D/67D, E8663D PSG Signal Generators Service Guide
 
Replaceable Parts 
Assemblies and Hardware Options 
2-46
Disassembled A24 20GHz Highband Coupler and A25B Highband Detector Bias Board (Option 521)
Figure 2-23 Disassembled A24 20GHz Highband Coupler and A25B Highband Detector Bias Board (Option 521)
Table 2-9 Disassembled A24 67GHz Highband Coupler and A25 Highband Detector 
Item No. Description Qty Part Number
1 Coupler Bracket (Option 521) 1 E8251- 00356
2 Screw- Machine M4.0 x .312 PN- PN  2 0520- 0128
3 Screw- Machine M3.0 x 8 CW- PN- TX 6 0515- 0372