CO129-547-1 Wireless telegraph and telephone services 16-1-1934 - 26-1-1934 — Page 7

CO129 Colonial Office Hong Kong Records 理藩院香港檔案 All

G. F. 22

Inside Sheet

INDENT No:-

HONG KONG

3

PAGE.:-

Estimated Cost in England.

Item

No.

Quantity.

Description of Articles.

Total,

Rate.

4

1 Set.

5

6

P

H

WORKING VALVES for combined Telephone Receiver and Terminal Equipment.

RECEIVER SUPPLY EQUIPMENT

ACCUMULATOR BATTERY for Anode Supply 130 volts comprising 65 cells each 20 amp.hours complete with acid and stand.

ACCUMULATOR BATTERY FOR Fila- ment Supply 8 volts comprising 4 cells each 120 amp.hrs.com- plete with a cid and containers.

ACCUMULATOR BATTERY for Grid Bias Supply 24 volts comprising

12 cells each 20 amp.hrs. com- plete with acid and crates.

ACCUMULATOR BATTERY for Control Table Supply 24 volts comprising 12 cells each 40 amp. hrs. complete with acid & crate.

RECTIFIER RACK for charging the batteries items:

a. Angle Steel framework mount-

ing all necessary switches, indicating instruments and fuses and the following units.

b. Rectifier for Main Anode

Supply of the metal oxide type complete with all necessary smoothing to deliver 150 m/a. at 120/180 volts D. C.

a.Rectifier for filament supply, of the metal oxide type com- plete with all necessary smoothing to deliver 5 amps. at 7/11 vol te D.C.

Carried Forward......

3,

d.

7

Remarks or references to specifications or

special notes (if any)

on separate sheet.

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