IC-746 / Sb-220 compatibility

[Peter J. Havens]

Hi Guys:
    A friend just called regarding his purchase of a new Icom 746, but he is unsure as to whether it is compatible with his old SB-220 linear. As I don't own any "newer" solid-state stuff (only boat-anchors), I could not advise him. I suppose the question comes down to keying voltages of the SB-220 relay, and the Icom's limits. Do any of you guy's have similar set-ups (no doubt some of you do!)?
     Thanks in advance for your help.                Peter Havens 
                                                                    KA2SQJ

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