montgomery p200Model: Montgomery Ward P200 (TXI-8662A)
Battery:  3*AA NiCd or 4*AA Alkaline

Adapter:  AC9130 or AC9120
Year: 1974
Chip: TMS0601
Manual:
Info:
 

montgomery p8pModel: Montgomery Ward P8P (TXI-8645A)
Battery:  4 x AA

Adapter:  
Year: 1978
Chip: TMS0128
Manual:
Info:
 

montgomery p8mModel: Montgomery Ward P8M (TXI-8646A)
Battery:  4 x AA

Adapter:  
Year: 1974
Chip: TMS0601
Manual:
Info: