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(!!!) (Recommended Pair) 1619 RCA NOS 1960-1964 (52ma and 53ma)

(!!!) (Recommended Pair) 1619 RCA NOS 1960-1964 (52ma and 53ma)

$ 29.99

1 pair) 1619 RCA NOS 1960-1964 reboxed 

1 tube) 52ma Gm=4800 (1964) in 1965 box

1 tube) 53ma Gm=4620 (1960) in 1965 box

 

Matched on Amplitrex

Vplate=300V

Svcreen=250V

Vgrid=

Good Ma = 44-50ma

Good Gm = 4000

 

2.5 Volt filament

15 watts

 

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