TM 11-5840-281-35/1
Pin
Unit and Tube
1
2
3
4
5
6
7
8
9
Electronic
Filter-cont.
V4
V
+195
-0.1
6.3 vac
+2
+2
6.3 vac
0.0
+125
...........
R
17k
120k
FIL
140k
140k
FIL
1.1 mego
160k
...........
V5
V
-6.4
-130
6.3 vac
-125
0.0
6.3 vac
-2.6
+145
...........
R
1.1 mego 425k
FIL
40k
................. FIL
675k
160k
...........
V6
V
+195
-6.5
6.3 vac
+4.5
+4.5
6.3 vac
-6.5
+195
...........
R
18k
1.1 mego
FIL
38k
38k
FIL
1.1 mego
27k
...........
Rotating coil
Note. Conditions for vr measurements: On master Control-Indicator C-6988/TPN-18, SCAN MODE switch
amplifier
placed to NORM.
A1600
V1
V
+260
..................
6.4 vac
+440
6.3 vac
+260
...............
+295
+440
R
550k
..................
FIL
100k
FIL
550k
...............
13k
100k
V2
V
+260
+150
+152
6.8 vac
6.3 vac
+150
+82
+86
6.8 vac
R
550k
700k
11k
FIL
FIL
700k
160k
35k
FIL
V3
V
+82
0.0
...................
0.0
+82
................
0.0
...............................
R
110k
0.0
...................
0.0
110k
................
0.0
...............................
V4
V
+3.8
+8.2
...................
6.3 vac
+280
+210
+8.2
...............................
R
2.75k
750
FIL
FIL
16k
65k
750
...............................
V5
V
.................
0.0
-0.35
+82
...................
+295
-65
-52
6.3 vac
R
FIL
0.0
1 mego
75k
..................
13k
35k
280
FIL
V6
V
+4.2
...................
+440
..................
+300
................
-50
6.3 vac
............
R
55
...................
100k
..................
13k
FIL
75k
FIL
............
V7
V
+4.2
...................
+440
..................
+295
................
-53
6.3 vac
............
R
55
...................
-150k
..................
13k
FIL
280k
FIL
............
Unit and Transistor
Collector
Base
Emitter
Sensitivity time control
Note. Conditions for voltage measurements: Antenna system in elevation scan.
A3900
Q1 ..........................................
+0.3
0.0
+0.3
Electronic control preampli-
Note. Conditions for voltage measurements: SCAN MODE switch placed to SEARCH and SCAN
fer A7500
switch to OFF.
Q1 ..........................................
+16
+1.2
+1.3
Q2 ..........................................
+18
+1.6
+1.75
Q3 ..........................................
+34
+5
+6
Q4 ..........................................
+35
+0.15
-0.4
Q5 ..........................................
+35
+0.2
-0.4
Q6 ..........................................
+35
-0.1
-0.75
Q7 ..........................................
+35
-0.15
+0.8
Q8 ..........................................
+2.5
-0.75
-1.3
Q9 ..........................................
+2.5
-0.75
-1.35
3-18
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