UN1
- 356 -
vidicon te1ecine 405, 625 and 525 line systems. CH1/12A
with UN9/526, MX1/504, GE2/530, GE2/531, GE2/532. First
used EP6/501. DD 1964. DD Spec 7.50. ACO. OBSOLETE.
UN1/557
Test Line Signal Eraser Unit.
with AM4/51l, AM4/5l2, GE2/535
GE2/533,
PS2/13F.
DD 1965.
OBSOLESCENT.
405 or 625 lines. PN3/23
or GE2/535A or GE2/535B,
DD Spec 9.43. DDTM 9.46.
UN1/558
Trigger Unit used in PAlM/529 to provide pulses for
triggering X deflection circuits of television waveform
monitors. Switchab1e between 405 525/625 line standards.
Mains
operated.
CHl/l2B.
DD 1965.
DD Spec 9.48.
DDHB 9.56. ACO. OBSOLESCENT.
UN1/559
Supply Connector Unit used in C06/503 to make supply and
pulse connections to the output high speed switch
assembly. Printed circuit board l14mm x 76mm. DD 1965.
DD Spec 7.74. OBSOLESCENT.
UN1/560
Matrix Unit used in EPl/504 to mix three video signals to
produce a vertical correction signal with higher
frequencies removed. CHl/12A, pegs 16, 29. DD 1965.
DD Spec 7.83. DDHB 7.120. ACO. OBSOLESCENT.
UN1/561
Reversible Binary Counter (6 stage) used in EPl/504 to
operate NE4/502. CHl/12A, pegs 16, 18. DD 1965.
DD Spec 7.77. DDHB 7.116. ACO. OBSOLESCENT.
UN1/562
Switching Logic Unit used in EPl/504
pulses from UN1/563 and process them
Also suppresses UN1/563 during field
supplies suppression pulses to UN3/51l.
16,
25.
DD 1965.
DD Spec 7.85.
OBSOLESCENT.
to accept error
to drive UNl/56l.
sync period and
CHl/12A, peg nos.
DDHB 7.111. ACO.
UNl/563
Sync Pulse Phase Comparator used in
alternative output error pulses
relative phase of two input video
with 2 UNl/523, CH1/l2A, pegs
DD Spec 7.809. DDHB 7.112. ACO.
EPl/504 to produce two
corresponding to the
signals. Associated
16, 19. DD 1965.
OBSOLESCENT.
UNl/565
Attenuation and Delay Unit used in MN2M/505. Controls
levels of two similar video inputs and introduces a time
delay into one output. CHl/26A. DD 1965. DD Spec 5.107.
ACO. OBSOLESCENT.
UN1/566
Signal Inverter Unit used in PAlM/53l. Includes combining
unit and power supplier.
CH1/12A.
DD 1965.
DDHB 7.93.
OBSOLESCENT.
UN1/567
Video Gating Unit used on picture monitors and cameramen's
viewfinders to produce a two-tone dotted line, set in by
12% from the edge of the picture, to indicate picture
areas which may be lost on viewers' screens. Accepts up
to four video feeds and gates pulses from GEl/525 to the
video picture. CHl/26A, pegs 17, 18. DD 1965.
DD Spec 8.292. ACO. OBSOLESCENT.

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