PA1/30
PA1/3l
PA1/33
PA1/34,34A
PA1/36
PA1/38,38A
PA1/39
PA1/4l
PA1/42
PAl/43,44
PAl/45
PA1/46
PAll1/47
PAlM/48
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PAl
Panel, Signal Timing used at sending terminal on VF
Switching System. Has 5 timing circuits using cold
cathode trigger tubes Z803U. Mains operated. HM/1E
hinged mounting. 483mm x 222mm. 1960/62. DD Spec 2.202.
OBSOLESCENT.
Amplifier Combining Panel used on Bristol-London VF
Switching System. 483mm x 89mm. 1960/62. DD Spec 2.202.
OBSOLESCENT.
Miscellaneous Panel used on DK4/6 and DK4/6A.
OBSOLESCENT .
1960/62.
Panel, Designation Strip used on Type 12 bays. Suffix A
indicates addition of lacing bar. G.l. 1963.
OBSOLESCENT.
Panel, Intercom, used with Type C studio equipment in
integrated sound and television premises. Mounts in
CHl/2l and accommodates two AMI/7. Width: 89mm. 1963.
DD Spec 3.356. OBSOLESCENT.
Fan and Filter Panel used on Optical Standards Converter.
483mm x l78mm panel with tangential fan and air filter.
PA1/38 has fan capacity of 110 cubic ft/min. and PA1/38A
has capacity of 200 cubic ft/min. 1963. DD Spec 11.9.
OBSOLETE.
Panel, Socket used at Cardiff. Chassis fitted with 11,
15, 23 and 31 pole Painton sockets. 1964. OBSOLETE.
SB Line Equaliser Panel for equalisation of 2 SB lines in
control rooms with transistorised equipment. Comprises
PN3/23 with 2 AM7/4, 2 UN1/45 and accommodation for 2
CH2/l and 2 CH2/2. Originally coded EQ3/l6. 1964.
DD Spec 2.221. TI.L.3. OBSOLESCENT.
OB Line Equaliser Panel for equalisation of OB music lines
in control rooms with transistorised equipment. Comprises
PN3/23 with AM7/4, UNl/45 and accommodation for EQ3/l2,
EQ3/13, EQ3/14, AT2/7, AT2/7A and an additional AM7/4 for
a second line, as required. Originally coded EQ3/17.
1964. DD Spec 2.218. TI.L.3. OBSOLESCENT.
Replaced by PAlM/49 and PAll1/48 respectively.
OBSOLESCENT.
1965.
RF Amplifier Panel used in EP1/2. 1965. OBSOLESCENT.
Power Supplier Panel used in EP1/2. 1965. OBSOLESCENT.
Receiving Panel for the Dublin switching system.
with PS2/9, AM3/2, AM7/4. 1965. WITHDRAWN.
PN3/23
Telecine Recording Panel. PN3/23 containing Commag
recording amplifier and control unit, Sepmag recording
amplifier and control relay unit, and mini oscillator for
Commag and Sepmag bias and erase currents. Replaces

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