C02

C02/522

C02L/523

C02/524

C02L/524A

C02/525

C02/526

C02/527

C02/527A

C02/530

C02/53l

C02/532

- 80 -

DD Spec 10.14. DDHB 10.12. ACO. OBSOLEWCENT.

Digital Phase Shift Frequency Converter used to convert

the frequency of the signal from C02/52l to the original

sub-carrier frequency with digital control of the output

phase

in

1.5

degree

steps.

Includes

2

MD2/504,

11

UN9/528. CHl/28, oegs 7, 26. DD 1966. DD Spec 10.15.

DDHB 10.12. ACO. OBSOLESCENT.

Natlock/PAL Colour Sub-carrier Frequency Converter.

Provides a single feed of PAL colour sub-carrier from an

input of Natlock reference oscillator frequency. Includes

C02/524, OS2/5l3, C02/527 with mounting panel for fitting

to PN3/23.

DD 1966.

DD Spec 10.13.

DDHB 10.9.

ACO.

OBSOLESCENT.

Natlock Oscillator Frequency Converter used in C02L/523 to

provide an output at a sub multiple of the input frequency

for use in controlling OS2/5l3. CHl/26A, pegs 3, 41.

DD 1966. DD Spec 10.65. ACO. OBSOLESCENT.

As C02/524 but without 75~ load on Natlock input.

DD 1971. OBSOLESCENT.

Frequency Converter

modulated signals

centred on 30Mc/s to

36Mc/s oscilloscope.

used to convert

at 5.5Mc/s-6.8Mz/s

drive quartz delay

CH1/12A. DD 1966.

Amp ex frequency

to new signals

lines. Includes

WITHDRAWN.

Frequency Converter used to convert frequency modulated

signals centred on 30Mc/s down to 5/5Mc/s-6.8Mc/s, using

an external oscillator which is usually the one in

C02/525. CH1/12A. DD 1966. WITHDRAWN.

PAL Colour Sub-carrier Frequency Converter employing

UN9/528 Binary Switch Units to divide the frequency of the

output signal from C02/524 by a factor of 75, and compare

in phase with the difference signal from the Natlock

reference frequency and the PAL colour sub-carrier signal

to provide a phase comparator output for locking OS2/5l3.

CH1/26A, pegs 5, 43. DD 1966. ACO. OBSOLESCENT.

As C02/527, but designed to operate at Natlock frequency,

and fitted with additional inverter stage in phase

comparator

circuit.

DD 1971.

DD Spec 10.65.

OBSOLESCENT.

Sound Frequency Converter similar to C02/519 but contains

frequency multiplier and has Band III output. Printed

circuit board, 89mm x 152mm. DD 1967. OBSOLESCENT.

Vision Frequency Converter similar to C02/520 but contains

frequency multiplier and had Band III output. Printed

circuit board 89mm x 152mm. DD 1967. OBSOLESCENT.

UHF Pump Frequency Converter used in EP7/5ll. Accepts VHF

input from OS2/519, amplifies and multiplies it in

frequency to UHF. Output is applied via FL2/533 or