DeArmond had 4 different pickup in use on their guitars.
The Indonesia made guitars M-50 to M-65, S-65 and Jetstar Special had an open bobbin humbucker and it also came with a chrome cover. On the X145 wide body they had a humbucker with a open "H" chrome cover like a Gretsch humbucker. Not sure if this was same as the Low grade guitar pickups with a cover change.
The Korean made guitars, less X145, had either the Goldtone humbucker or the model 2K single coil. The model 2K sounds like a small P90.
DeArmond Guitars with Goldtone humbucker were: M70, M72, M75, M77, S73, Starfire Custom, X135, X155 and the Jetstar.
DeArmond Guitars with Model 2k single coils are:
M68 (Indonesia), M75T, M77T, S7312 (12-string), Bajojet (baratone), Starfire Special and T-400.
The 7-Star and S67 (Indonesia) are 7 string guitars with open bobbin humbucker pickups. Not sure but suspect they are the same pickup.
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