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Tube Database (7,341 tube types · 1,270 archive entries)

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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Test instrument record

Shell Test-O-Matic

Test-O-Matic

Shell

Archive ID
9y7ycggg
Type
Emissions Type Tester
Type B
Tube
Model
Test-O-Matic
Brands
Shell
Country
USA
Archive ID
9y7ycggg
Type

Shell Test-O-Matic tester details

Emissions Type Tester