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

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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Test instrument record

AVO Mark IV

Mark IV

Avo

Archive ID
sboxxstk
Type B
Tube
Type
Dynamic Mutual Conductance
Country
England
Model
Mark IV
Brands
Avo
Archive ID
sboxxstk
Type
Dynamic Mutual Conductance

AVO Mark IV tester details