where can i get a power cord with flat socket(for philippines)for AC adapter that use in compaq laptop?

International Electrical Supplies has Phillipines Plug Adapters selling for $23.21
PHILIPPINES plug adapters: the grounded plug adapters WA-5 & WA-9 and the ungrounded plug adapters #1, #3, & #6. These are the recommended wall outlet plug adapters for PHILIPPINES




Going in Style has one selling for $13.50
These grounded adaptor plugs enable your appliance's plug configuration to fit into Philippines electrical power outlets. the Philippines Adapter kit contains the GUA and GUB adapter plugs. Grounded adapter plugs allow electrical connections from 100 volts to 240 volts. An adapter plug does NOT change the current or voltage (this requires a converter) unless your appliance is dual voltage. Grounded adapter plugs maintain the ground from the electrical outlet to your appliance. Many of our customers find it handy to have multiple adaptors while traveling - either to run several appliances simultaneously or simply as a backup. The following adaptors are used in the Philippines:
A-Type Adapter $3.00
B-Type Adapter $3.00
Philippines Kit $5.75

The following grounded adaptors are also used in the Philippines:
GUA-Grounded A-Type $7.25
GUB-Grounded B-Type $7.25
Grounded Philippines Kit $13.50