[Heathkit] Heathkit part?/Cabinet color

[Revcom]

Question:

Experts out there, when did Heathkit change cabinet colors on equipment?
I picked up several Heathkit  items from an SK estate, am in process of
cleaning/
checking it out.  Have a Station Monitor -HO-5404-, it is Brown not green.
What equipment did that go with?

Also on part ID, I think the capacitor bank P/N is 6A1433C, does that ring
a bell?  Large fixed caps on a metal plate.  Heath part?

Rod
K0EQH