[Boatanchors] Parts ID

[Revcom]

Came across a part assembly.  It might be Heathkit.  It is 4 large ceramic?
capacitors on a plate, there is 180mmf, 200mmf, 280mmf, and 400mmf
with 6/32 mountings on plate.  Part number as near as can tell is-GA1433C-
Anyone know what this might be for?  Came from SK estate, he had a LOT
of Heathkit gear. Looks like fixed loading capacitors for maybe a linear or
?
I know he used to have an SB-220

Rod
K0EQH