JUMA TRX2 Two Band PA board toroidal coils
 
L3 and L4


1uH, Core Amidon T25-2 (red)
17 turns 0.4 mm enamel copper wire


 
 

 Additional instruction (This is a principle picture, see the turns and the other specification above)

1. Wind the coil (see the details above)

2. Presolder the wires with a hot iron

3. Fold the wires for surface soldering