I-56

test kit. comes in several variations .

A-Model

• Weston model 665 analyzer
• Weston model 666 socket selector
• Weston model 685 tube tester
• Weston model 564 Volt -Ohmeter
• Weston model 571 output meter

C-Model

• Triplett model 1183-SC combination tester
• Triplett model 666-SC Volt-ohm. tester
• Triplett model 650-SC output meter
• 7 adapter plugs

K-Model

• I-166
• I-176
• I-177 tube testor

References

• TM 11-321 Test Set I-56-E. War Dept. Jul. 1943. 48 p
• TM 11-303 Test Sets I-56-C,-D,-H,-J (4 March 1944); 97 pages