Scott Dorsey wrote:

I believe that the IF on the AR-88 is peaked and not staggered, which
means you can indeed get away with just a signal generator and a scope.

They are indeed (or are supposed to be) stagger tuned - with two
transformers over-coupled and two under-coupled --- that's why the RCA
manual has such a lengthy procedure - using a sweep gen.

best regards...
--
randy guttery

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