Eico tended to use a lot of ceramic disk caps in places they should not have- such as coupling caps. But their transformers were pretty good. So if you replaced the coupling caps (and of course have the power supplies rebuilt) their stuff sounds just fine.
I rebuilt one of their preamps and ran it for years, although I ran it with an external supply.
I rebuilt one of their preamps and ran it for years, although I ran it with an external supply.