Hewlett-Packard 450A Operating And Servicing Manual

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Brand: HP

Category: Amplifier

Type: Operating and servicing manual for HP 450A

Pages: 24 (1.74 Mb)

Download HP 450A Operating and servicing manual

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NOTES
UNLESS OTHERWISE NOTED,
VOLTAGES ARE
DC,
MEASURED
TO
GROUND
BY
A
VTVM
WITH
100
MEGOHM
I~OUT
IMPED-
ANCE.
LINE VOLTAGE SET
TO
115
VOLTS,
60
CPS
INPUT TERMINALS SHORTED.
GAIN
SET
TO
40
DB.
o
o
NC
2nd
AMPLIfiER
V2
5654
1st
AMPLifiER
VI
5654
71<
o
180
70V
lOOK
1
MEG
220
R8
I
0
101<~
I
0
147
1001<
5001<
I
I
188V
600K
'''5
V
'"
lL'"
82K
147
V
70K
195
V
3901<~
LOOI<
ex:>
-
ex;
C?-
O
0
00
I I
1
MEG
215V
lOOK
I
I
471<
195V
I
I
1001<
2200
R82
l80V
i2'Oi<
Figure
4-5.
Voltages and
Resistances
on Tube Sockets and
Terminal
Boards
lOOK
215V
3.6
V
o
o
NC
NC
NC
390
V
----ex;
147V
70K
j-
-
_.
NC
,'-
NC
J£..Y
100
K
REGULATOR
CONTROL
V6
6AY6
NC
00
147
V
lOOK
80V
RECTifiER
V4
LINE
V.
5Y3GT
I =
375
VAC
i"5OO
390V
00
NC
NC
'
I
00
8
8
....
I
....