CO129-547-1 Wireless telegraph and telephone services 16-1-1934 - 26-1-1934 — Page 27

G. F. 22

27

Inside Sheet

HONG KONG

INDENT No:-

Item

Quantity.

No.

4

PAGE.:-

Estimated Cost in England.

Description of Articles.

Total.

Rate.

£. S.

d.

77 (Contd.)

10A

1

1

and amplifying circuits, indicating instruments and mountings for the follow- ing valves:·

1 valve Type S.610 Master

Oscillator Unit.

1 valve Type DEL.610 Master

Oscillator Unit.

1 valve Type P. 610 Master

Oscillator Unit.

2 valves Type H.L.610, lst

Frequency Multiplier.

2 valves Type H.L.610, 2nd

Frequency Multiplier.

2 valves Type P.625, 1st

Bridge Amplifier.

4 valves Type P.625, 2nd

Bridge Amplifier.

e.Absorber Unit mounting one

M. T. 12 absorber valve, absorbing resistance and detail parts.

ROTARY IN TERRUP TER AND RESISTANCE UNIT with Control and Changeover Switches for I.C.W. operation.

TRANSFORMER EQUIPMENT

MAIN POWER TRANSFORMER,

three

phase, 50 cycles, 350 volts input, complete in tank with special Transformer Oil and suitable for Telegraph or Telephone loads.

CONTROLS

MAIN POWER INDUCTION

REGULATOR, hand operated and

wound to suit existing supply and load.

Carried Forward......

Remarks or references to specifications or special notes (if any) on separate sheet.