P AlM/ 60
PAlM/60P
PAl/6l
PAlM/62
PAlM/63
P AlM/ 64
PAlM/65
PAlM/66
PAlMI 67
PAl/68
PAlM/69
PAl/70
PAl/7l
.. 229 ..
PAl
Microphone Amplifier and Mixer Panel used to enable studio
quality speech originated in the studio to be used instead
of telephone quality speech. PN3/23 with UN1/10l, AM9/6A,
AM6/3A, (units 1, 2), AM7/3, MXl/6, FL2/2. 1968.
DD Spec 2.275. DDHB 2.173. ACO. OBSOLETE.
As PAlM!60 fitted in CS2/11. 1968. DD Spec 2.173. TI.
OBSOLETE.
Power Supplier Panel, 483mm x l33mm with Farne1l
Instruments Power Supplier Type SSB/H normally set to 42V
output, but adjustable to 30V-60V. Maximum current lA.
Used on BA13/510. DD 1968. DD Spec 12.33. OBSOLESCENT.
MR-NT Indicating System Panel (Send) used to indicate at
Newcastle the state of the Sandale switch on the MR-CE
switching system. PN3/23. 1968. WITHDRAWN.
MR-NT Indicating System Panel (Receive) used to indicate
at Newcastle the state of the Sandale switch on the MR-CE
switching system. PN3/23. 1968. WITHDRAWN.
Condenser Microphone Regulator Panel
483mm x l33mm panel similar to
OBSOLESCENT.
with 8
PN3/23A.
UNl/llO.
1968.
Power Supplier Panel with 3
similar to PN3/23A. 1968.
PS2/75. 483mm x l33mm panel
OBSOLESCENT.
Minute Counter Panel used at Bush House. Contains 2 sets
of equipment (main and reserve) for timing sequence of
PA6M/56. Has input pulses from half minute clock and
counts for 15 minutes in 1 minute steps before requiring
resetting. Includes power supplier. 483mm x l78mm ISEP
panel. 1968. OBSOLESCENT.
Ringing Current Oscillator Panel for replacement of
'Syncycle' type of generator now unobtainable. PN3/23
with 3 OS2/36 (1 spare), IN5/2. 1968. OBSOLESCENT.
Line Bridging Panel used in conjunction with UNlO/13 in
EP2M/l. Carries 12 Retard Coils Type 3406B to provide a
d.c. path across a telephone line. 483mm x 44mm. 1969.
WITHDRAWN .
Power Supplier Panel used in EP7/512. PN3/23 with PS2/67,
PS2/74B,
PS2/82A,
UN3/25,
UN9/53l,
PN3A/16H.
1969.
OBSOLESCENT.
Ventilation Panel for ventilating bay mounted equipment
and mounting designation strips. 483mm x 45mm panel with
metal grille and designation strips. SCPD 1970.
OBSOLESCENT.
Transmitter Output Panel used on BA13/15, BA13/l6.
Comprises 483mm panel with FL5/6, low pass filter, power
meter, carrier failure detector and l50W balancing load.
1970. OBSOLESCENT.

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