hi,

i just got an old (1970's mod 510 desk phone. the line cord was cut from the inside. it is wired for two lines. green and red (tip and ring), yellow and black (spares?)wired for another line.also had a buzzer, white and blue wires, which i removed. i wired in a moduler jack, and attached green and red to the j-block/strip, under the dialer, where the original green and red wires were from the old line cord. the phone works fine, can dial out and receive calls clearly. one problem tho. the bells ring very weak. i have the bells adjustment on loud, and the bells are all the way apart like they should be. could the solenoid for the bell be weak? the clapper barely moves. also, the rotor switch for the lines pushes down also, and activates/disactivates a set of contacts. what is this for?

thanks for any help,

bob