[Heathkit] SB-300 and SB-301 Filters

[L L bahr]

Awhile back I asked what the differences were between the SB-300 and SB-301 receivers.  Among other things,  I was told the AM filter was widened on the AM filter and the CW filter was narrowed.

That said, are the filters interchangeable between the two receivers?  I know the IF frequency are the same, but are the footprints the same so the pins of the filters will mate up with the sockets of either receiver?  (Can you plug in a SB-300 filter into a SB-301 and visa versa)?

Lee, w0vt