Elenco Electronics, Test Equipment, models:

DT-100K	Assembly And Instruction Manual
MO-1251	Instruction Manual
MO-1252	Instruction Manual
RS-400/K-37	Assembly And Instruction Manual
SG-9000	Operation Manual
SP-3B	Assembly And Instruction Manual
ST-751	Assembly Instructions Manual
TPG-70	Instruction Manual
XK-150	Instruction Manual