A5A4 Parts List - HP 5065A Operating And Service Manual

Rubidium vapor frequency standard
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Model 5065A
Circuit Diagrams, Theory, and Maintenance
Page 6-23, Table 6-4, Option 001 (A5) Replaceable
Parts:
Change A5 (05065-6084) series number from 1904
to 1840.
Page 6-26, Table 6-4, Option 001 (A5A4) Replaceable
Parts:
Replace A5A4 (05061-6152) and all components
for this assembly with A5A4 Part No. 05061-6033
and components in Table 7-12.
A5A4 05061-6033 (1840) PL here
CHANGE C (Option 001 A5 Series 723)
NOTE
The following changes for A5 series number does
not affect the serial prefix number of the instru­
ments with A5 added for Option 001 or 003. The
series number of the A5 module assembly may not
be the same as the instrument serial prefix number.
Page 8-33, Figure 8-13, A5 Schematic Diagram:
Change A5 from series 1904 to 1840.
Replace A5A4 schematic diagram with diagram in
attached Figure B for A5A4 P.N. 05061-6033
(SERIES 1840) circuit board assembly.
Replace A5A4 component locator illustration with
new illustration in attached Figure C.
Page 8-35, Figure 8-14, Part of A5 Schematic Dia­
gram and
Page 8-37, Figure 8-15, Part of A5 Schematic Dia­
gram:
Change A5 series number at top of diagram from
series 1904 to 1840.
NOTE
The previous A5A4 circuit board assembly used a
variable capacitor instead of the newer potentio­
meter. The adjustment procedure is the same for
both assemblies.
Page 6-26 and 6-27, Table 6-4, Option 001 to 003
Replaceable Parts:
Change A5 module assembly (05065-6084) and
A5A2 (05061-6014) series numbers to SERIES 723.
Change A5A2C13 to 0140-0202 (15 pf); FXD MICA
15PF 5% 500WVDC; 28480; 0140-0202.
Page 8-35, Figure 8-14, Part of A5 Schematic Dia­
gram and
Page 8-37, Figure 8-15, Part of Schematic Diagram:
Change A5 series number at top of both sche­
matics to SERIES 723.
Page 8-35, Figure 8-14, A5A2 (05061-6014) Sche­
matic Diagram:
Change series number at top of schematic to
SERIES 723.
Change the value of A5A2C13 from 10pf to 15pf.
Table 7-12. A5A4 Parts List
Reference
Designation
A5A4
A5A4C1
A5A4C2
A5A4IC1
A5A4Q1
A5A4R1
A5A4R2
A5A4R3
HP Part
Number
05061-6033
0140-0176
0131-0006
1820-0315
1854-0005
0757-0948
0757-0924
0757-0931
Qty
1
1
1
Description
BOARD ASSY: SWITCH
C: FXD MICA 100 PF 2%
C: VAR MICA 70-350 PF 175VDCW
INTEGRATED CIRCUIT
TSTR: SI NPN
R: FXD FLM 10K OHM 2% 1/8W
R: FXD MET FLM 1K OHM 2% 1/8W
R: FXD FLM 2K OHM 2% 1/8W
Mfr
Code
28480
28480
28480
28480
80131
28480
28480
28480
Part Number
05061-6033
0140-0176
0131-0006
1820-0315
2N708
0757-0948
0757-0924
0757-0931
7-58

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