ETD34 7+7 magnetic ferrite core transformer for switching power supply.
RANLO coil, manufacture of high frequency transformer and choke.
Provide products according to customer's sample, drawing, circuit or below application.
1) Power supply topology （such as Flyback, Forward, Half bridge, Push pull, Full Bridge... ）
2) Working Frequency
3) Input and output voltage
4) Output power
Aliexpress store: https://www.aliexpress.com/store/1459305