[sdiy] Countryman phase shifter component ID needed

[Larry Spence]

I finally completely disassembled my ancient Countryman phase shifter.
There's a key component that I don't recognize.  It's a little white chip,
about 1 cm on a side and only 1 mm or so thick.  It's got ten copper leads,
four of which have been snipped off flush with the chip.  Markings are an H
logo (Harris?), A9, 911-5.  There are a total of nine of these "chips" (they
don't look like normal ICs) on the main board.  The only other visible
active component is an old-style op amp.  Can anyone ID the white chips?
Primitive delay lines?  Op amps?

Thanks,
 Larry