Keith,
Thanks for the help. I am sure ones here will need this information.
From the specs of the CA3046 at 120mc while the specs also say the range is 550mc, a PN3568 looks like a good replacement at higher specs than the original IC. You will need 5 transistors to do the job of the IC. These are rated at 80/60V, 600mc, higher current capacity and 625mW. The PN transistors are a current supply at Mouser.
Mark
