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VOLTAGE AND
RESISTANCE CHART
DC VOLTS
DC VOLTS
AC
VOLTS
(Ike)
RESISTANCE
TUBE
PIN*
NO
SIGNAL
50
W
OUT
50
W
OUT
UNITOFF
EF86/Z729
1
94
88
0.45
1.2
Meg
Q
2
0
0
0
0
VI
3
2.2
2
0.45
2.3 K
Q
48.
5
filament (6.3
V AC
between)
"
6
82
74
5.5
500
KQ
7
0
0
0
0
8
2.2
2
0.45
2.3 K
Q
9
0
0
.52
1
Meg
Q
6SN7GTB
1
76
71
.0042
1 .
5
Meg
Q
2
310
285
34.5
50
KQ
V2
3
92
87
2.7
19
KQ
4
82
74
5.5
500
KQ
5
310
265
34.5
46
KQ
6.
92
87
2.7
19
KQ
78.8
filament
(6.3V
AC
between)
EL34/6CA7
1
.65
1.2
1.3
10Q
2&7
filament
(6.3V
AC
between)
"
V3
3
470
440
240
70
Q
4
470
440
100
35
Q
5
-38.5
-37.5
34.5
230
KQ
6
-39
-39
34
KQ
8
.65
1.2
1.3
10Q
EL34/6CA7
1
.65
1.2
1.3
10Q
2&
7
ft
lament
(6.3
V AC
between)
"
V4
3
470
440
240
79
Q
4
470
440
100
29Q
5
-38.5
-37.5
34.5
230
KQ
6
-39
-39
"
34
KQ
8
.65
i.2
1.3
10Q
GZ34
1
2
filament
470 (5.0V
AC
to
pin
8
—
remove
tube
to
measure)
above
200KQ
V5
3
4
,
393
50
Q
5
6
393
50
Q
7
8
fi
lament& cathode470
440
above
200KQ
All
voltages
and
resistances are
measured
to
chassis
with
the input level control set
maximum
clockwise
(full
gain)
and
Bias
Adjust
and Balance
Adjust
controls set
for
proper
bias
voltage
and
correct
balance
respectively.
Voltages
are
measured
with
a high input
impedance
VTVM.
All
resistance
measurements
are
made
with
pin
8
of the
GZ34
grounded except,
of
course,
when
the resistance
to
ground
at pins
2
and 8 of
the
GZ34
is
being checked. Operating
line
voltage
at
which
voltage
measurements
are
made
is
117
volts
AC,
60
cps
.
NOTE: ALL
VOLTAGE
&
RESISTANCE VALUES
MAY
VARY NORMALLY
BY ±15%.
8
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