Pages 8-51 through 8-6W8-66: YIC-TUUEDOSCILLATOR MEHBL Y A6Table 8-3. BF Section, Replaceable Parts

2240A & Below

Add A5MP3, HP P a r t Number 08559-20041, Check D i g i t

7,

COVER,

2ND

 

L.O.

 

 

 

 

 

 

 

 

 

Under Miscellaneous P a r t s :

 

 

 

 

 

 

 

Change t h e

q u a n t i t y of HP P a r t Number 2200-0119 from 7

t o 9.

 

Delete HP P a r t Number 2200-0156.

 

 

 

 

 

2236A & Below

Change A5 t o

HP P a r t Number 08559-60005, Check D i g i t 7.

 

 

 

Change A5MP2

t o

HP P a r t Number

08559-20002,

Check Digit

0, CAVITY

 

BLOCK.

 

 

 

 

 

 

 

 

 

Change A6 t o HP P a r t Number 5086-7301, Check D i g i t 5.

 

 

 

 

Add HP P a r t

Number 08559-00033.

YTO SHIELD.

 

 

 

 

 

1951A00285

 

 

NOTE

 

 

 

 

 

 

& Below

The following components have preferred replacements;

A5C4 and

 

A5L2. I f t h e

instrument does n o t contain t h e preferred

l i s t

 

 

replacement

values, a s shown i n

t h i s Replaceable P a r t s

and

 

Schematic i n t h e Manual, then both components should be changed

 

a t t h e same

time.

 

 

 

 

 

 

1951A,1945A

Change A5CR2

and A5CR3 t o HP P a r t Number 0122-0078,

Check

 

& Below

Digit 2, DIODE- VVC BVR=30V Q=225-MIN.

 

 

 

 

 

1909A & Below

Change A5L3 t o

HP P a r t Number 08559-00020,

Check Digit

0 ,

 

 

COUPLING LOOP

INPUT.

 

 

 

 

 

 

Figure 8-21.2nd Converter, Component Locations

 

 

 

 

 

 

2236A & Below

Delete Front

Y I G Mounting Bracket, HP P a r t

Number 08559-00035.

 

Delete Rear Y I G Mounting Bracket, HP P a r t Number 08559-00036.

Prior to 22366 serial prefix, the YIG-Tuned OscillatorAssembly A6 was mounted to the side gusset.Figure 8-22. YIC-TunedOscillator Assembly A6 and Shielded Caponeats

2236A & Below Delete Figure 8-22.

Figure 8-25. RF Section, Schematic Diagram

2236A & Below Replace appropriate s e c t i o n s of Figure 8-25 with new P/O Figure 8-25 (SERIAL PREFIX 22361) included i n t h i s Manual Backdating supplement.