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usually its  100 ohm resistor if this is a 4 pill. The idea is you have 1, 50 ohm input being split into2, 50 ohm outputs......2 x 50 ohms is 100ohms. The "balancing resistor" is usually double the input resistance or in this case....100ohms. Using 100 ohms will give you 50ohms on each side.


100 ohms will be fine....... it sould be the same value as the balncing resistor used at the input side. The balancing resistor sets the resistance of the 2 outputs of the combiner/splitter.


Check for burnt small value resistors ( usually around 10 or 12 ohms) that run from base (input) to ground.... should be 1 resistor per pill.... usually if those are burnt , the pill is history. Its a good indication of which pills to check first.

Personally I would lift the base and collecter tab and check them all....but at least you can get some idea of which one should be bad by looking for those burnt 10 ohm resistors.