Specifications

Page 21
Copyright 2006 Robert A. Larson, KC9ICH
TABLE 1. VOLTAGE AND RESISTANCE MEASUREMENTS.
Voltage measurements were taken using a HEWLETT PACKARD Model 410C/B VTVM. Resistance measurements were taken
using a SIMPSON Model 260 Volt-Ohm meter. Refer to other conditions for measurements on page 18.
TUBE
TYPE
R =Rec.
T =Trans.
Socket Pin Numbers
1 2 3 4 5 6 7 8 9
V1 12BA6
VFO Amp
R Volts
T Volts
Ohms
0
0
852
0
0
0
0
0
0
12.6AC
12.6AC
0
130
120
>50K
40
38
l00K
.38
.38
60 
V2 12BE6
Trans. Mixer
R Volts
T Volts
Ohms
-2.5
-2.5
l00K
0
0
0
0
0
0
12.6AC
l2.6AC
0
212
195
>50K
-2.5
105
25K
0
-10.0
25K
V3 6GK6
Driver
R Volts
T Volts
Ohms
0
.9
10 
-6.2
-6.2
50K
0
0
0
12.6AC
12.6AC
0
6.3AC
6.3AC
0
NC
NC
NC
260
230
>30K
0
170
100

0
0
0
VS 6CB6A
Rec. R.F.
R Volts
T Volts
Ohms
-.35
-9.5
26K
0
0
0
6.3AC
6.3AC
0
12.6AC
12.6AC
0
215
200
>30K
95
-4.6
>40K
0
0
0
V6 12BE6
Rec. Mixer
R Volts
T Volts
Ohms
-4.0
-3.8
82 
0
0
0
0
0
0
12.6AC
12.6AC
0
260
220
>40K
95
0
l00K
-.7
-10.0
56 
V7 12BA6
1st IF.
R Volts
T Volts
Ohms
-1.2
-1.5
l00K
0
0
0
0
0
0
12.6AC
12.6AC
0
200
165
>30K
100
95
40K
0
0
0
V8 12BA6
2nd IF.
R Volts
T Volts
Ohms
-1.5
-33
13K
0
0
0
0
0
0
12.6AC
12.6AC
0
195
0
>30K
95
0
>40K
0
0
0
V9 12AX7
Det. A.F.
R Volts
T Volts
Ohms
95
-4.3
370K
-2.5
-3.6
7.5 
0
0
270 
0
0
0
NC
NC
NC
125
0
125K
-1.1
-1
1M
0
0
0
6.3AC
6.3AC
0
V10 6AV6
AGC Amp
R Volts
T Volts
Ohms
0
0
500K
1.7
1.4
5K
6.3AC
6.3AC
0
12.6AC
12.6AC
0
NC
NC
NC
0
-.37
210
165
>40K
V11 6GW8
A.F. Output
R Volts
T Volts
Ohms
0
0
110 
1.5
.4
2.7K
215
0
>30K
0
0
0
6.3AC
6.3AC
0
255
225
>30K
6.5
0
270 
0
-.85
1.1M
155
-.2
120K
V13 6JH8
Bal. Mod.
R Volts
T Volts
Ohms
0
0
3K
0
9
110K
0
90
6K
6.3AC
6.3AC
0
0
0
0
-2
-1.8
25K
0
0
0
0
130
14K
0
130
14K
V14 12AX7
Mic Amp
R Volts
T Volts
Ohms
55
55
820K
-.47
-.47
2M
0
0
0
0
0
0
12.6AC
12.6AC
0
-42
76
200K
0
0
0
.13
.53
1K
NC
NC
NC
1 2,6 3,11 4,10 5,9 7,8 12 Plate
V4 8950
Power Amp
R Volts
T Volts
Ohms
0
0
0
0
22
3 
0
175
100
0
0
0
-60
-60
18K
NC
NC
NC
12.6AC
12.6AC
0
+840
+750