PSI
PS1/11
PSlM/13
PSlM/13A
PS1M/13B
PSl/14
PSl/15
PS1/l6
PSl/17
PSi/lS
PS1/19
PSl/20
- 306 -
UN15/501, C02/510. Provides stabilised 12V at 500mA and
unstabi1ised 2SV at 700mA. CH1/l2A. 1964. DD Spec 4.22.
ACO. OBSOLESCENT.
Used in EP7/504 to supply the two output valves. Mains
input is switched by a relay operated by associated
carrier monitor. Outputs: (a) +430V, l20mA unregulated,
(b) +340V, 5mA regulated, (c) +220V, 25mA regulated, (d)
-24V, 30mA regulated, (e) 6.3V, 3A a.c. CH3/1B. DD 1964.
DDMI 5.S7. OBSOLESCENT.
Used with VHF Television Translators. PN3/23 with 2
PS2/37, PS2/l3A and UNl/38 or UN1/38A or UN1/3SB, UN9/530
or UN9/530A or UN9/531 or UN9/533, MN2/504 as required.
DD 1965. DD Spec 12.4. OBSOLESCENT.
Modified PSlM/13 used with a translator which is modified
to accept signals at IF and is fed by MDl/502 to produce a
transmitter.
PN3/21 with 2 PS2/37, PS2/l3B,
UNl/38A
or
UN1/38B, UN9/533, MNl/502A. 1966. OBSOLETE.
Similar to PS1M/13 but for low voltage plug-in units used
in
VHF
television translators.
PN3/23
with
sub-units
including PS2/63, PS2/64, UN1/93, UNl/93A or UNl/93B.
1967. OBSOLESCENT.
EHT Power Supplier for the CRT used in MN6/503 and
MN6M/504. Input: 20V d.c. Outputs: (a) +7.5kV, lOO~;
(b) -92.0V. 3mA; (c) +125V, 2mA for indicating neons.
ll4mm x 76mm x 60mm. 1966. DD Spec 9.80. ACO.
OBSOLESCENT.
Power Supplier and Loudspeaker used in RC1L/50l, RC1L/502
to provide mains or batte~y operation with enclosed
loudspeaker to assist correct running of the receivers.
CH1/12A, pegs 9, 39. 1966. DD Spec 8.254. DDHB 8.237.
ACO. OBSOLESCENT.
Used in EPIM/512.
pegs S. 37. 1966.
Includes PS3/32, PS2/22B. CHl/12A,
DD Spec 7.124. ACO. OBSOLESCENT.
Standby Battery Power Supplier containing nickel cadmium
cells for floating across the two outputs of PS2/56B.
Nominal voltages are +12V and -6V relative to earth.
CH1/lSE.
pegs
8,
44.
DD 1966.
DD Spec 2.267.
OBSOLESCENT.
UHF Amplifier Power Supplier used in EPl/5l7. Supplies
15V a.c. up the feeder to AM14/5l3. Box 114mm x 89mm x
51mm. 1967. DD Spec 6.138. ACO. OBSOLESCENT.
30V a.c. Power Supplier used at small transmitting
stations which operate from a low voltage supply.
Provides a constant 30V square wave with 250VA capacity
from mains input. 254mm x 127mm x l27mm. 1967. ACO.
OBSOLESCENT .
Used in EP6!503 to provide +6V.
-6V,
-24V. +lSV

6