[R-390] Collins mechanical filter - help with identification

[Joachim R Groeger]

Folks,

I have salvaged three mechanical filter from a circuit board but cannot identify the filters themselves nor the equipment they came out of.

Can anyone help me with the characteristics of these beasts?

They are marked:

F450 Z1C

F450 Z2C

F450 V60F

Any help is greatly appreciated.

73

J R "Jo" Groeger
G4XXW, DK3NG, EL0AA/MM


-- 
"During times of universal deceit, telling the truth becomes a revolutionary act."

George Orwell