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(!!!!) (Best Pair) EL37 Mullard branded Philips Miniwatt and Mullard test like new 1955-1957 (80ma and 81ma)

$ 398.88

1 pair) EL37 Mullard England 1955-1957 test like new, getters like new

GOOD ELECTRICALLY MATCHED PAIR FROM 1950's

 

1 tube) 81ma Gm=9,500 (GRAY PLATE) 1 upside down trough getter 1st series

EL37 Mullard branded Philips Miniwatt tests like new, rattle inside base a few dried glue particles, made before 1955 (1282 A2) code predates 1955

 

1 tube) 80ma Gm=9200 (BLACK PLATE) 2 upside down trough getters 2nd series

EL37 Mullard black plate (R61-B7A=1957) tests like new

 

 

Recommended for

- CARR MERCURY 2003

- Fisher 80-AZ

- Dared

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