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II
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VOLTAGE AND RESISTANCE CHART
SANBORN DUAL CHANNEL DC AMPLIFIER
MODEL 150- 2000
i
1
!
I
,
TUBE
1
2
3
I
4
5
6
7
8
9
..
\12001
30K*
3.5K
3.5K
30K*
(4 to 6)
(6 to 4)
+38SV
800VAC
800VAC
+385V
V2002
700K
1.6M
3K
850K
1.6M
2.9VAC 2.9VAC
+130V
.22V
-3.5V
+130V
.22V
V2003
3.4VAC 90K*
90K*
1M
4SK*
6K
3.7VAC
3.1VAC
3.4VAC
+360V
+360V
+130V
..
V2004
. 100K*
lOOK*
1.2M
4SK*
6K
3.5VAC 3.9VAC
3.9VAC
3.4VAC
+360V
+360V
+130V
._--
V200S
1M
1.4M
3K
1M
1.4M
2VAC
2.9VAC 2.9VAC
+130V
.12V
-3.5V
+130V
.12V
- - -
V2006
4SK
lOOK·
100K*
l.3M
4SK*
6K
3.4VAC 3.6VAC
3.6VAC 2VAC
3.4VAC
+360V
+360V
+130V
V2007
4SK
100K*
100K*
1.4M
4SK*
6K
3.4VAC 3.2VAC
3.2VAC
3.4VAC
+360V
+360V
+130V
--
_.
Readings taken with H. P. Model 4lOB VTVM.
A 1.5K 30W resistor across pins 3-4, 5-4, 6-7, 8-7 of jack 2001 to simulate galvanometers.
VOLTAGE READINGS
POWER ON
NO SIGNAL
ATTENUATOR OFF
POSITION CENTER
DAMPING CENTER
MEASURE FROM EACH TUBE SOCKET TERMINAL TO GROUND
RESISTANCE READINGS:
POWER OFF
NO SIGNAL
ATTENUATOR OFF
POSITION FULL CLOCKWISE
DAMPING FULL COUNTERCLOCKWISE
MEASURE EACH TUBE SOCKET TERMINAL TO GROUND
·CHARGING CAPACITOR
_ 7 _
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