Philips PM3208 - 2.1 Display Characteristics; 2.2 Vertical Deflection or Y Axis; 2.3 Channels A and B

2-2
2 CHARACTERISTICS
CHARACTERISTICS
2.1 DISPLAY
SPECIFICATION
Cathode ray tube 150 DEB31
Measuring area (h x w) 80 mm x 100 mm
Screen type GH (P31)
Total acceleration voltage 2 kV
Graticule internal, fixed
Nlumination continuously variable
2.2
VERTICAL
DEFLECTION
OR
Y
AXIS
Channel A
Channel B
Deflection sources
Ch. A and Ch. B ADDed
Deflection modes 1 Channel only
Channel A&B ADDed or
subtracted
2 Channels chopped
2 Channels alternated
Chop frequency 250 kHz + 20%
Y signal output:
source Channel A
Output voltage into 1 MQ 100 mV/div
Output voltage into 50 Q 50 mV/div
2.3 CHANNELS A AND B
Input connector BNC
Input impedance:
R parallel 1MQ+ 2%
C parallel 30 pF
max. input cap. difference 2 pF
Input coupling d.c., a.c., ground
ADDITIONAL INFORMATION
150 mm rectangular single beam
domed mesh tube.
8 div x 10 div
Channel B can be inverted
(allowing for A-B in ADDed
position)
A+B
MTB: 0,5 s/div...1 ms/div and in
X-Y operation
MTB: 0,5 ms/div...0,2 «s/div
Measured at frequencies
< 1 MHz
In AC pos. of input coupling:
22 nF in series with R par. and
C par.
In GND pos.: R par =
In GND position: channel
disconnected from input BNC and
connected to ground
2.1 DISPLAY