TE1M/505
TE1M/506
TE1M/507A,B,C
TE1/508
TE1/509
TE1/510
TE1/511
TE1/512
TE1/513
TEl/5l5
TE1M/5l8
TE1/5l9
TEl/520
- 335 -
TE1
detector at pre-arranged time intervals.
18, 29. DD 1965. ACO. OBSOLESCENT.
CHl/12B, pegs
Differential Gain Tester comprising band-pass filter
(4.43Mc/s) and amplifier detector for sub-carrier envelope
measurement. CHl/12A in portable case. DD 1966/67.
WITHDRAWN.
Equaliser Tester used for setting up the input hybrid of
EQ1/508. Printed board. DD 1966/67. WITHDRAWN.
Equaliser Testers used in EQl/508 when setting up
EQIM/507. A = Phase, B
Gain, C
Phase and Gain.
Printed boards. DD 1966/67. DD Spec 11.22. WITHDRAWN.
Automatic Chrominance Equaliser Tester used for lining up
and testing EQ12L/501.
CHl/12A.
DD 1966/67.
ACO.
WITHDRAWN .
RF Three Tone Tester for use with modulators, e.g.
MD1/502, incorporating MD1/503A, MD1/503B working at IF
(37.5MHz vision and 3l.5MHz sound). The third tone is
variable over frequency range 32.5MHz-35.0MHz to cover the
standard sub carrier frequency in the IF band. Printed
board mounted in lengthened CH1A/3. DD 1966/67.
DD Spec 4.57. WITHDRAWN.
Logic Card Tester for ISEP logic cards with 25
e.g. CD2/502, CD3/502, UN23/510. Eddystone box.
adaptor for testing cards with 33 way plugs.
DD Spec 5.155. OBSOLETE.
way plugs
Includes
DD 1968.
Split Screen Tester, 457mm x 178mm panel with separate
control box. DD 1969. DD Spec 8.396. OBSOLESCENT.
Data Adaptor Tester for testing data adaptors
Insertion Communication Equipment. Eddystone
Painton 15 way plug input. DD 1970. WITHDRAWN.
used
box
with
with
Gain and Delay Tester, part of
and improved facilities in unit
CH1/l2A. Superseded by
DD Spec 9.168. DDHB 9.151(79).
TE1/517, giving additional
of reduced size. Modified
ME3M/502.
DD 1971.
OBSOLESCENT.
Automatic Monitor Tester to provide facilities for testing
MN2M/518 and MN2M/5l8A. Diecast box 187mm x 120mm x 83mm
with socket outlets, push-button switches and indicating
lamps. ED 1971. OBSOLESCENT.
Streaking Distortion Tester, comprising bar generator, bar
slope detector and power supplier. PN3/23. DD 1972.
DDMI9.l74(74). OBSOLESCENT.
Differential Gain
CH1/69. DD 1972.
Unit Tester,
OBSOLESCENT.
for
testing
UN20/521.
Pulse Lobe Unit Tester, for testing UN20/529.
DD 1972. OBSOLESCENT.
CHl/69.

35