Tektronix 511 Instruction Manual page 44

The following photographs are provided to
facilitate servicing of the Type 511A and will
prove especially useful if another oscilloscope
is available to observe the waveforms of the
circuits being tested. Amplitudes are measured
peak-to-peak.
CAUTION--These waveforms and ampli­
tudes represent average values, selected
from a number of instruments.
Considerable normal variation in individual
oscilloscopes may be expected, due to a variety
of causes, such as:
P A G E 4 — f 8
TRANSFORMER CONTINUITY
T1 (Measured with leads disconnected)
Terminals Ohms Resistance (2 0 ° C)
1 to 3
2 to 4
5 to 6
7 to 8
8 to 9
10 to 1 1
12 to 13
14 to 15
15 to 16
16 to 1 7
18 to 19
20 to 21
22 to 23
24 to 25
T2 (Measured with V32 and V33
removed from sockets)
From To
+ 225
V31 pin 5
Junction C74,C75 + 225
V32 pin 7
V32 pin 2
V33 pin 2 V33 pin 7
V33 pin 7 Gnd.
WAVEFORMS
Beginning withS/N 845 and up. Waveforms will
apply to instruments S/N101-845 inmost cases.
T Y P E 51 f - M A I N T E N A N C E
1.7
1.7
.3
147.
150.
.27
.03
10.8
10.9
.21
.025
6.1
.42
.25
Ohms Resistance
2 0 ° C)
15.3
2.8
.03
.03
1175.
1 . Loading effect of the test oscilloscope.
2 . Non-linearity of the test oscilloscope.
3. Insufficient bandwidth of the test oscilloscope.
4. Manufacturing tolerances of the components
in the Type 511A under test.
5. Variations in control settings of the 511A
under test.
6. Line voltage variations.