A triplexer for shortwave, 2 m and 70 cm
I used CuAg wire for the coils, normal Cu wire should work too.
The capacitors are 500 Volt types, you may order them here.
For high power I would use them in parallel.
triplexer - schematic, done with Eagle, get the file here (shift_leftclick)
triplexer, low power version, good for abt. 200 watt
diplexer for 2m/70cm, the shortwave lowpass is omitted
diplexer for 2m and shortwave, I use it along with an IC706 in the car