HP 11848A Service Manual page 123

Phase noise interface
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Model 1184 8A
Service
CHANGES
2749A and Above
On the A3 component locator:
A3R208 - Change R208 to VRl.
On the A3 schematic:
A3R207, R208, R209 - Change the value of R207 to 1.33k.
Change the value of R209 to 2.61k. Change R208 to VRl;
connect the anode to ground and the cathode to the line con­
necting R207 and pin 15 of U208.
W W N W H I a
rev.26JUN87
A 3a
96.1

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