~1
UN1/621
UN1/622
UN1/624
UN1/624A
UN1/625
UN1/626
UN1/627
UN1/628
UN1/629
UN1/630
~1/631
UN1/632
362 -
Input impedance and output termination 7S~. CHl/12A, pegs
45, 60. DD 1969/70. WITHDRAWN.
Sync Pulse Width Extender Unit first used in C06/507.
Accepts input of line sync pulses and gives an output of
widened
pulses.
Widening
is
adjustable
by
delaying
trailing edge of pulse; leading edge is substantially
unde1ayed. Input and output levels -2V p-p negative
going. Input impedance high. Output termination 75~.
CHl/12A, pegs 45, 61. DD 1969/70. WITHDRAWN.
Data Storage Unit for 2 sets of 25 8 bit words. Used with
the character generator as a store for character address
information. Printed circuit board with 33 way ISEP plug,
coding 3, 12, 21. DD 1970. DD Spec 7.212. OBSOLESCENT.
RGB Matrix Termination Unit containing resistors and
relays for using AM4/522 for RGB test signal addition.
Construction similar to PN3A/32A extended rearwards by
28.6mm. DD 1970. DD Spec 8.391. ACO. OBSOLESCENT.
As UN1/624 but with 24V relays. For outside broadcast
use. DD 1970. DD Spec 8.391. OBSOLESCENT.
Buffer Unit used between data
the character generator store.
33 way ISEP plug, coding
DD Spec 7.211. OBSOLESCENT.
storage and decode units in
Printed circuit board with
3, 7, 31. DD 1970.
Row Selector Unit used at
the character generator.
way ISEP plug, coding 3,
OBSOLESCENT.
the output of the data store in
Printed circuit board with 33
9, 19. DD 1970. DD Spec 7.210.
TARIF Joystick Control Unit used with 2 UN3/530 to provide
interface and power for joystick control of EPl/503.
Includes PS2/9lA. Box 184mm x l2lmm x 54mm. DD 1970.
DD Spec 8.407. OBSOLESCENT.
Fault Integrator Unit used in MN2M/5l8A.
DD 1970. DD Spec 11.123. OBSOLESCENT.
CH1/43A.
Shading Corrector Unit used in association with MDl/509
for correcting sensitivity variations over the target area
of p1umbicon camera tubes and dichroic tilt in prism
assembly. Used in EMI 2001 camera. CHl/12A, pegs 47, 56.
DD 1970. WITHDRAWN.
Simulation Switch Unit for testing
of a correctly aligned UN9/Sl0.
DD Spec 8.410. OBSOLESCENT.
TE2/3 without the use
CHl/12A. DD 1970.
Video Probe Unit used with EPlM/523 when the input signal
is not of standard form e.g. inverted, high impedance or
wrong
level.
Flying
lead
with
probe
head.
DD 1970.
WITHDRAWN.
Link Unit used in PAlM/56l to bring connections and

62