PHIL.CO
Service Bulletin~No. 86
Models 50 and 50-A Receivers
Model 50 Receivers are for operation on 100-130 volt, 50-60 cycle AC lines
Model 50-A Receivers are for operation on 100-130 volt, 25-60 cycle AC lines
Table 1-Tube Socket Readings Taken with AC Set Tester AC Line-115 volts
Tube
Screen Control
Plate
I
Filament
Plate
Grid Grid
Cathode
MIiii-
Type
Circuit
Volts
Volts
Volts Volts
Volts
amperes
24
1st R.F. 2.4 245
90 2.5
3.0
4.5
24
-2nd R.F.
2.4
250
90 2.5
3.0
5.5
u Det.
I
2.4 100 42 8.0
8.0
u
47 Output 2.4
I
175•
190* 1.0*
... 2.7*
80
Rect. 5.0
. . . . ..
...
.
..
30/
Note_:_Volume Control on full; Station Selector turned to Low Frequency End.
*These readings must be taken from the underside of the
chassis, using test prods and leads unless the set checker is
specially equipped for testing pentode tubes.
Table 2-Power Transformer Voltages
Terminals A.C. Volts j
Color
__________ , _______ 1_ ________________ 1---------------
1-2
3-5
6-7
8-10
4
9
No. on Figs.
2 and 3
®@
@@
®
@
@
®
@
®
No. on Figs.
3
and 4
@
~
®
®
®@
®
@
@
(2o)
105 to 125
2.5
5.
700.
Primary
Filament of 24 and 47
Filament of 80
Plates of 80
Center Tap of 3-5
Center Tap of 8-10
Table 3-Condenser Data
.00025
.01
.05
Capacity MFD
.05 and 150 Ohm resistor
.1,
.15, .25, 2-.5 (50-60 cycles)
.05, .15, .25, 2-.5 (25-40 cycles)
.05
(50 to 60 cycles) 6.
(25 to 40 cycles) 10.
6.
Table 4-Resistor Data
Power
(Watts) Resistance
...
150 and .05 Mfd.
.5 10,000
1.
15,000
1.
25,000
.5
32,000
.5
99,000
.5
160,000
.5
240,000
.5
490,000
Body
Black (Small Gauge)
Black
Light Blue
Yellow
Black, Yellow Tracer
Yellow, Green Tracer
Container
Yellow
Black Bakelite Container
Black Bakelite Container
Black Bakelite Container
Metal Container
Electrolytic
Electrolytic
Electrolytic
Color
Tip
Dot
Black Bakelite Con tainer
Brown Black
Orange
Brown Green
Orange
Red
Green
Orange
Orange Red
Orange
White White
Orange
Brown Blue
Yellow
Red
Yellow
Yellow
Yellow
White
Yellow
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