[TenTec] repair of Herc II amp RE Phil (k4dpk)

[Sam Bridges]

Hello Phil:
    I wondered about replacing all eight trans myself, but Gary at TT says that is the only safe way. I gather the reason is that (I am told) the trans must be matched in current drain or trouble will results. Secondly, it appears that RF trans in or out of circuit can appear to test good when in  fact they will not produce full output. This seems to be the result of the physical make up of the trans.,viz. part of it will be working but the rest will not. As a result the trans will not fail a continuity test but be bad. I am new to RF Trans so I could be wrong.
    Anyone know what the resistance between the collector and the base should be of a MRF454 out of circuit?
    Tnx de KJ4ZM Sam