PA2
238
installation (e.g. a transmitting station) by public
telephone if interrogated, or to signal the information
over 23kHz in the event of an alarm being raised. Double
PN3/23
with
sub-units.
DD 1970.
DD Spec 2.365.
DDHB 2.228. DDTM 2.231. EDI 101l7(1)OCT7l. WITHDRAWN.
==========================================================================
PA2 Sub Group not available for new designs DD 1977.
PA3/l
PA3/2
PA3/3
PA3/4
PA3M/503
PA3M/504
PA3M/505
PA3M/506
PA3M/507
PA3M/508
PA3 AMPLIFIER PANELS
Amplifier Panel holding 2 AMl4/l3
suppliers for mounting on a
OBSOLESCENT.
with associated power
483mm bay. 1970.
OB Amplifier Panel, of commercial design to BBC
specification, forming part of UNl/145. Wedge shaped
modular construction, with sloping front panel 360mm x
l33mm. SCPD 1972. OBSOLESCENT.
OB Master Group Amplifier and Mixer Panel, of commercial
design to BBC specification, forming part of MX4/l. Wedge
shaped construction with sloping front control panel.
270mm x 260mm. SCPD 1972. OBSOLESCENT.
OB Small Group Amplifier and Mixer Panel, of commercial
design to BBC specification, forming part of MX2/2. Wedge
shaped construction with sloping front control panel l80mm
x 260mm. SCPD 1972. OBSOLESCENT.
Amplifier Panel containing 7 AM2M/504 for amplifying the
output of quartz delay lines in field store. PN3/23.
1966/68. WITHDRAWN.
Amplifier Panel containing
delay lines in field store.
7 AM2M/505 for driving quartz
PN3/23. 1966/68. WITHDRAWN.
Luminance Amplifier Panel used in C06/504. Contains main
drive amplifiers and power suppliers for line store
converter
luminance
signals.
Double
PN3/23
with
Amplifiers AM5/508, and PS2/25, PS2/l3C. 1966/68.
WITHDRAWN.
ChrominanceAmplifier Panel used in C06/504. Contains
main drive amplifiers and power suppliers for line store
converter chrominance signals. Double PN3/23 with
Amplifiers AMS/508 and PS2/70, PS2/7l, PS2/l3C. 1966/68.
WITHDRAWN.
Distribution Amplifier Panel. PN3/23 with 3 AM4/5l8, 4
AM4/506A. 1966/68. WITHDRAWN.
Distribution Amplifier Panel used in C06/504. PN3/23.
1966/68. WITHDRAWN.

38