GE2
GE2/614
GE2/615
GE2/6l6
GE2/6l7
GE3/501
GE3/502
GE3/502A
166 -
Clamp Drive Pulse Generator.
generate pulses required by
CH1/l2A, pegs 7, 13. DD 1972.
used in
GE2/526C
DDMI 8.429.
PA18M/522A to
and UN9/579.
OBSOLESCENT.
DD 1972. DDMI 7.268. CANCELLED.
Master Pulse Generator. forming part of EPlM/530. When
EPlM/530 is formed by modification of EPlM/521. GE2/616
replaces GE2/592. Printed circuit board, with BBC/ISEP 33
way connector, indexing 3. 11, 13. DD 1972.
DDMI7.268(73). OBSOLESCENT.
Gating Pulse Generator. used in EPlM/530. Printed circuit
board. with BBC/ISEP 33 way connector. DD 1972.
DDMI 7.267. OBSOLESCENT.
GE3 SUPPRESSOR GENERATORS
Bias and Suppression Unit. Provides stable d.c. potential
variable from 100V to 230V for cathode bias of CRT and 80V
d.a.p. positive going line and suppression pulses
superimposed on the d.c. bias. Can be used with UNl/539
to give instantaneous blanking of a CRT in the event of
scan failure. 405 or 625 lines. Power supplies from
PS2/18 and PS2/19. DD 1963. DDHB 11.6. WITHDRAWN.
Suppression Pulse Generator used with MN1/505 or MNl/508
for 625 line operation. Printed circuit board. DD 1969.
DD Spec 11.80. EDI 10034(1)DEC69. TI. OBSOLESCENT.
Similar to GE3/502 for use with MN1/505A or MNl/508 for
405
line
operation.
DD 1969.
DD Spec 11.80.
OBSOLESCENT.
=========================================================================
GE3 Sub Group not available for new designs DD 1977.
GE4/l
GE4/501P
GE4 TEST SIGNAL GENERATORS
,
Polarity Test Generator used in conjunction with UN20/l0
to test phasing polarity. particularly in stereophonic
circuits. Generates an asymmetrical waveform. Box ll4mm
x
43mm.
DD 1967.
DD Spec 2.339.
DDTM 2.193.
EDI 10094(1)AUG7l. OBSOLESCENT.
Portable White Noise Generator used with equipment for
measuring random noise in the presence of a television
signal.
Mains operated.
432mm x 254mm x 254mm.
Weight:
20lb. Valves: 2 l2AX7, 27M2, 2 CV3998. CV2l27, 6AU6,
85A2, A2293, 5A/163K. U709, 6X4. DD 1957. DD Spec 9.6.

66