Budget: 35 baht up
Operating: Tuesday – Friday 12 noon – 2 pm and 6 pm – 9 pm (most street food customers are still office workers), you mostly wont find any on Mondays, Weekends and Public holidays
There are 3 main tasty streets in Bangkok

a)Rama 4 road

Address in Thai: ซอยปลูกจิต ถนน พระรามที่ 4
Location: See Map
GPS coordinates: 13.724639, 100.548758

b)Silom

Address in Thai: สีลม 1
Location: See Map
GPS coordinates: 13.728785, 100.535284
Motorcycle or taxi 40-50 baht

c)Chinatown

Address in Thai: เยาวราช
Location: See Map
GPS coordinates: 13.740578, 100.509449

Take a subway to Hua Lampong and walk or Taxi about 80 baht