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VOLTAGE AND RESISTANCE MEASUREMENTS
VOLTAGE READINGS
RESISTANCE READINGS
Item
V 1
V 2
V 3
V 4
V 5
V 6
V 7
V 8
V 9
V 10
V 11
V 1 2
V 1 3
V 14
V 1 5
V 1 6
V 1 7
V 18
V 1 9
V 2 0
V 2 1
V 2 2
V 2 3
V 24
V 2 5
V 2 6
V 2 7
V2BB
Tub*
6AG5
6A05
6J6
6AU6
6AU6
6AH6
12AT7
12AT7
6SL7GT
6AC7
6AU6
6AII6
6AU6
6T8
6V6GT
6AU6
6SH7
6SN7GT
6V6GT
6AL5
6AC7
6K6GT-G
6BG6G
5V4G
1B3GT
5U4G
5U4G
12KP4
Pin 1
-5.8VDC
-1.6VDC
120VDC
-.2VDC
-.2VDC
0V
-.SVDC
140VDC
.2VDC
0V
0V
0V
-.7VDC
-.5VDC
0V
-.6VDC
0V
-10VDO
0V
-2.6VDC
0V
OV
0V
0V
Pin 2
.7VDC
.8VDO
4-95VDC
0V
0V
0V
-.6VDC
-.2VDC
-.1VDC
0V
0V
0V
0V
-.5VDC
6.3VAC
0V
0V
140VDC
300VDC
0V
-9VDC
0V
ov
6.3VAC
480VDC
t DO NOT
0V
0V
*215VDC
340VDC
430VDC
205VDC
Pin 3
6.3VAC
6.3VAC
6.3VAC
6.3VAC
6.3VAC
6.3VAC
OV
2. 3V DC
2. SVDC
OV
6.3VAC
6.3VAC
6.3VAC
4.6VDC
200VDC
OV
OV
OV
330VDC
OV
OV
160VDC
14VDC
OV
Pin 4
OV
OV
OV
OV
OV
OV
OV
6.3VAC
-2.2VDC
-.4VDC
OV
OV
OV
OV
225VDC
6 .3 VAC
-.8VDC
-20VDC
330VDC
6.3VAC
-.9VDC
180VDC
6.3VAC
400VDC
Pin 5
195VDC
19SVDC
•t-5
-4.2VDC
200VDC
175VDC
200VDC
OV
S.3VAC
185VDC
OV
135VDO
135VDC
55VDC
6.3VAC
OV
55VDC
OV
36VDC
OV
-1.2VDC
OV
-18VDC
1VDC
OV
Pin 6
115VDC
5SVDC
5-5VDC
140VDC
140VDC
135VDC
95VDC
SOVDC
OV
SOVDC
135VDC
135VDC
S5VDC
OV
OV
135VDC
135VDC
OV
OV
OV
90VDC
400VDC
1VDC
400VDC
Pin 7
.TV DC
.8VDC
OV
.6VDC
.6VDC
1.4VDC
-.SVDC
-.5VDC
6.3VAC
6.3VAC
.8VDC
.8VDC
OV
OV
OV
OV
6.3VAC
OV
6.3VAC
-8. SVDC
6.3VAC
6.3VAC
OV
OV
Pin 8
OV
OV
OV
190VDC
-.SVDC
9. SVDC
100VDC
6.3VAC
atjvuu
42VDC
220VDC
.4VDC
270VDC
480VDC
Pin 9
6.3VAC
OV
75VDC
TOP CAP
t
«ASURE
OV
OV
PIN 10
390VDC
320VAC
390VAC
PIN 11
215VDC
OV
300VDC
PIN 1£
«215VDC
320VAC
390VAC
OV
OV
340VDC
430VDC
Measurements taken on channel 4 unless otherwise stated
T Do not measure
§ Taken with vacuum tube voltmeter
* 6.3VAC measured between filament pins
4- Measured on channel 10
item
V 1
V 2
V 3
V 4
V 5
V 6
V 7
V 8
V 9
V 10
V 1 1
V 12
V 1 3
V 1 4
V 15
V 16
V 1 7
V 1 8
V 19
V 2 0
V 2 1
V 2 2
V 2 3
V 2 4
V 2 5
V 2 6
V 2 7
V28B
Tube
6AG5
6A05
6J6
6A1I6
6AII6
BAHfi
12AT7
124T7
6ST.7fiT
6AH7
6A1IK
fiallfi
6A1I6
BTR
BVfir.T
6AII6
6SH7
6SN7fiT
fiVfiOT
6AI.5
6AC7
6K6QT-Q
6BG6G
SV4G
1BSGT
5U4G
5U4G
12KP4
Pin 1
2.5 Mee.
3.5 Mee.
«6K2
] .5 Meg.
1.5 Meg.
.22
4K2
*2.8K2
3002
OB
.la
.12
100K2
150KS2
on
1 Mee.
OS
2.8 Mee.
OS.
7.5K2
oa
I n f .
Inf.
i n f .
Inf.
Inf.
I n f .
BQKffi
Pin 2
4?a
820SJ
*IOKB
on
oa
Offl
4KB
32KSZ
1.3 Meg
Offl
oa
oa
Offl
150K2
.2a
oa
02
»*2.2Meg
»»90K2
oa
470KS
oa
Offl
.2ffl
**14Kffl
I n f .
6Kffl
20KS2
»*9K2
Pin 3
.22
.2ffl
.28
.22
.22
.22
.Iffl
2.2K2
2.2K2
oa
.22
.22
.22
250K2
*1200a
02
02
02
**3Kffi
02
Offl
»*8K2
1502
Inf.
I n f .
I n f .
I n f .
PIN 10
»»130S
Pin 4
02
02
oa
02
02
02
Offl
.22
600K2
1 Mee.
02
02
oa
02
.520.0
.22
850K2
220K2
**3K2
.22
1.4MRO-.
*«13KS>
.22
««ieoa
I n f .
202
22ffi
PIN 11
120K2
Pin 5
»2K2
»2K2
ISOOffl
* 15002
*6K2
2K2
Offl
.2ffl
*20KB
Offl
*7.5Ka
»7.5Ka
»47Kffl
.22
™Ka
*20KE
02
**580Kffl
4.7 Meff.
1 Mfig.
102
70K2
500K2
I n f .
Inf.
I n f .
6K2
PIN 12
80K2
Pin 6
*24K2
*550K2
47K2
*3K2
»3K2
*36K2
*12Kffl
«18K2
02
*8.5Kffl
»7.5K2
*7.5KG
»47Kffl
Offl
242
•2.8K2
•2.8K2
02
I n f .
02
»«26Kffi
22K2
SOOKffl
*t!602
Inf.
202
22S
Pin 7
47ffl
8202
oa
822
822
1502
1 Mee.
1 Mee.
.22
.22
682
6?a
Offl
02
02
oa
.22
Offl
.2a
470K2
.2a
.2B
Offl
Inf.
inf.
I n f .
I n f .
Pin 8
02
02
02
»»9KB
15 MeE.
2202
»15K8
.2ffl
6.5K2
15002
**23KS
152
»*10K2
*«14K2
Inf.
6Kffi
20K2
Pin 9
.22
02
*220K2
TOP CAP
»*15Kffl
TOP CAP
**15Kffl
* Measured from pin 8 of V26
*» Measured from pin 8 of V27
1. DC Voltage measurements are at 20,000
ohms per volt; AC Voltage measured at 1,000
ohms.
2. Pin numbers are counted in a clockwise direc-
tion on bottom of socket.
3. Measured values are from socket pin to com-
mon negative unless otherwise stated.
4. Line voltage maintained at 117 volts for volt-
age readings.
5. Front panels controls set at minimum.
6. Where readings may vary according to the
setting of the service controls, both minimum
and maximum readings are given.
C9618C 'S9618Z 'L9618Z 'O9618S
'SZ618Z S13QOW H1IN3Z
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