GE4/502
GE4/503
GE4/504
GE4/504A
GE4/504B
GE4/504C
GE4/504D
GE4/505
GE4/505A
GE4/506
GE4/506A
GE4/506B
GE4/507
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GE4
OBSOLESCENT.
Generator, Test, Trigger Pulse and Calibrating Waveform.
Provides delayed trigger pulses and timing oscillation for
examination of a test signal waveform on an oscilloscope.
Mains operated. Portable. Weight: 19lb. Valves: CV3998,
MSl37, l2AT7, 2 CV455 , CV140, CV493, CV4079, CV138, CV499,
XBl.
DD 1958.
DD Spec 9.3
DDHB 9.17.
ACO.
OBSOLESCENT.
Sync and Test Waveform Generator. DD 1958. WITHDRAWN.
Sine Square~ Pulse and Bar Waveform Test
Contained in portable case CS2/7. Mains
Valves: 15 E88CC, CV469, CV449, A2293, l2AX7.
ACO. OBSOLESCENT.
Generator.
operated.
DD 1959/60.
Similar to GE4/504 but also
waveform with sync pulses.
OBSOLESCENT.
provides a
DD 1959/60.
line sawtooth
DD Spec 9.7.
Similar to GE4/504 but for 625 line standard. DD 1959/60.
DD Spec 9.29. OBSOLESCENT.
Similar to GE4/504A but for 625 line standard. Superseded
by GE2M/543. DD 1959/60. DD Spec 9.29. OBSOLESCENT.
Modified GE4/504A for OB use on both 405 and 625 lines.
Performance is a compromise between that of GE4/504A and
GE4/504C. DD 1959/60. DD Spec 9.33. OBSOLESCENT.
Non-linearity Test Signal Generator for linearity
measurements of transfer characteristic of apparatus which
accepts a video frequency line waveform. Portable in
CS2/7. 432mm x 483mm x 368mm. Valves: 4 CV455, 4 CV4004,
3 CV5042, 6 AU6, 5 CV2492, CV3998, CV138, CV449, 3 CV4079,
ECF80, ELB22.
Weight:
34lb.
DD 1959/60.
DD Spec 9.10.
DDHB 9.69. ACO. OBSOLESCENT.
Modified GE4/505 to give 625 line standard test signals.
DD 1959/60. DD Spec 9.19. DDHB 9.69. OBSOLESCENT.
Generator, Test, Sawtooth and Lift. Test waveform
consists of sawtooth, black level peak white and variable
lift when driven by standard pulses corresponding to 405,
525 or 625 line standards. Mains operated. CH1/llA.
Weight: 2.25lb. Transistors: 4 MA393, OC140, OC44.
DD 1959/60. DD Spec 8.47. DDHB 8.95. ACO. OBSOLESCENT.
As GE4/506 but on CH1/12B chassis.
OBSOLESCENT.
DD 1959/60.
As GE4/506A but switchable 405/625 lines.
WITHDRAWN.
DD 1964.
Oscilloscope Test Waveform Generator used for
high frequency response of oscilloscopes etc.
waveforms with rise and fall times of less
checking
Provides
than one

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