PAl
PA1/16A-J
PA1/17A-K
PAl/IS
PA1/19
PAl/20
PAl/2l
PA1/22
PA1/23
PAl/24
PAl/25
PAl/26
PAl/27
PA1/2S
PA1/29
- 226 -
circuits to bridge centre points of line winding in P.O.
repeating coils. 1959. OBSOLESCENT.
Designation panels on BX3/50l, carrying numerals 1-9.
1959. OBSOLESCENT.
Similar to PA1/6,
OBSOLESCENT.
but
carrying numerals
10-19.
Holding Panel used at Swingate. 1959/60. OBSOLESCENT.
Holding Panel and unearthed 50V power supplier, used at
Manchester to send alarm signals for automatic monitoring
to Holme Moss. 1959/60. OBSOLESCENT.
Holding Panel used at Douglas
and PA17/1S at Snaefell for
signalling of television receivers
Snaefell. 1959/60. OBSOLESCENT.
in conjunction with PA6/4
remote control by VF
and UHF transmitters at
Signal Timing Panel first used on VF Switching Systems
between Glasgow and Kirk O'Shotts. 4S3mm x 2l0mm HM/1E.
Contains five timing circuits and associated mains unit.
1959/60. DD Spec 2.139. OBSOLESCENT.
Timing Panel with two timing circuits first used on VF
Switching System between Glasgow and Kirk O'Shotts. 4S3mm
x l33mm. 1959/60. DD Spec 2.144. OBSOLESCENT.
Recording Panel mounting recording milliammeter, and peak
programme meter with dB meter for visual indication of
levels, and plug in AM4/5 recording amplifier. Part of
TE1/4. 1960. DD Spec 2.156. TI.L.5. OBSOLESCENT.
Amplifying and Timing Panel.
MNA/3, PS3/S. Part of
OBSOLESCENT.
PN3/l2 with UNl/2,
TEl/4. 1960.
GPA/4A,
TI.L.S.
Connector Panel used on BA4/4. 1960/62. OBSOLESCENT.
Panel, Filter (Receiving) used in OTl/3.
filters and pluggable AMS/3. 1960/62.
OBSOLESCENT.
Includes three
DD Spec 2.172.
Panel, Filter (Sending) used
filters and p1uggab1e AMS/3.
OBSOLESCENT.
in OT1/3.
1960/62.
Includes seven
DD Spec 2.172.
Panel, Power Supply and Modulation (Receiving) used in
OT1/3. Includes commercial oscillator (148.8kc/s), GE2/l,
4 C02/1, 3 MDl/1, PS2/8, UN1/19, in case CS2/SC. 1960/62.
DD Spec 2.172. OBSOLESCENT.
Panel, Power Supply and Modulation (Sending) used in
OT1/3. Includes commercial oscillator (148.8kc/s), GE2/l,
4 C02/l, 3 MD1/l, PS2/8, UN1/19, in case CS2/SC. 1960/62.
DD Spec 2.172. OBSOLESCENT.

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